Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions:
    In the Native American Navajo nation which sprawls across four states in the American south-west, the native language is dying. Most of its speakers are middle-age or elderly. Although many students take classes in Navajo, the schools are run in English. Street sign, supermarket goods and even their own newspaper are all in English. Not surprisingly, linguists doubt that any native speakers of Navajo will remain in a hundred years' time.
    Navajo is far from alone. Half the world's 6,800 languages are likely to vanish within two generations - that's one language lost every ten days. Never before has the planet's linguistic diversity shrunk at such a pace. Isolation breeds linguistic diversity as a result, the world is peppered with languages spoken by only a few people. Only 250 languages have more than a million speakers, and at least 3,000 have fewer than 2,500. It is not necessarily these small languages that are about to disappear. Navajo is considered endangered despite having 150,000 speakers. What makes a language endangered is not that the number of speakers, but how old they are. If it is spoken by children it is relatively safe. The critically endangered languages are those that are only spoken by the elderly, according to Michael Krauss, director of the Alaska Native Language Center, in Fairbanks.
    Why do people reject the language of their parent? It begins with a crisis of confidence, when a small community finds itself alongside a larger, wealthier society, says Nicholas Ostler of Britain's Foundation for Endangered Languages, in Bath. “People lose faith in their culture” he says. "When the next generation reaches their teens, they might not want to be induced into the old tradition.” The change is not always voluntary. Quite often, governments try to kill off a minority language by banning its use in public or discouraging its use in school, all to promote national unity. The former US policy of running Indian reservation in English, for example, effectively put languages such as Navajo on the danger list. But Salikoko Mufwene, who chairs the Linguistics Department at the University of Chicago, argues that the deadliest weapon is not government policy but economic globalisation. "Native Americans have not lost pride in their language, but they have had to adapt to socio-economic pressures" he says. “They cannot refuse to speak English if most commercial activity is in English."
    However, a growing interest in cultural identity may prevent the direct predictions from coming true. ‘The key to fostering diversity is for people to learn their ancestral tongue, as well as the dominant language' says Doug Whalen, founder and president of the Endangered Language Fund in New Haven, Connecticut. “Most of these will live without a large degree of bilingualism” he says.

According to the passage, endangered languages cannot be saved unless people

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.

Are you interested in seeing the beautiful fall foliage of New England but tired of traffic jams and overbooked hotels? Then this year forget the crowds in New England and see the beautiful colors of autumn in the Catskills.

These rugged mountains in New York State, just 90 miles northwest of New York City, are famous for the legendary tales of Rip Van Winkle, and more recently for the summer hotels that sprang up in the region during the 1940s, 1950s, and 1960s. Families trying to escape the heat of New York City found the Catskills to be the perfect place to stay for a month or so each summer. By the late 1950s there were over 500 resorts and hotels offering nighttime entertainment as well as all kinds of outdoor activities. Famous comedians like Jackie Gleason, Joan Rivers, and Sid Caesar all got their start touring the hotel clubs here. Since the introduction of air-conditioning and cheaper air travel, however, families have stopped coming to the Catskills in such large numbers, choosing instead more distant locations at different times of the year. Many of the Catskill hotels closed in the 1970s, but some remain and have expanded and changed their facilities to meet the needs of today's visitors.

Currently, there are many activities available to the traveler besides witnessing the changing colors of the leaves. There is an all-organic sheep farm where visitors can see how a traditional sheep farm operates. There are also hundreds of miles of scenic drives in the area. Route 42, for instance, is an excellent site for spotting bald eagles. For more information on vacations in the Catskills, call the Office of Public Information.

What is the author's main purpose in this passage?

Choose the letter A, B, C or D to answer these following questions:
In terms of sheer size, the Antarctic Desert is the largest desert on Earth, measuring a total of 13.8 million square kilometers. Antarctica is the coldest, windiest, and most isolated continent on Earth, and is considered a desert because its annual precipitation can be less than 51 mm in the interior.
 It’s covered by a permanent ice sheet that contains 90% of the Earth’s fresh water. Only 2% of the continent isn’t covered by ice, and this land is strictly along the coasts, where all the life that is associated with the land mass (i.e. penguins, seals and various species of birds) reside. The other 98% of Antarctica is covered by ice which averages 1.6 km in thickness.
There are no permanent human residents, but anywhere from 1,000 to 5,000 researchers inhabit the research stations scattered across the continent – the largest being McMurdo Station, located on the tip of Ross Island. Beyond a limited range of mammals, only certain cold-adapted species of mites, algaes, and tundra vegetation can survive there.

Which species of animals can survive in Antarctic desert?

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase for each of the blanks from 16 to 20.
As teenagers approach university level, a decision has to be made on what course to pursue. In this world of diversity, (16) such a choice is not easy for both children and parents. In the old days, it was not much a problem to do the task because there were not so many diverse learning areas to choose from. Besides, there were only a few distinctive professional careers like doctor, engineer, accountant, nurse, teacher, etc. to think about. Most higher learning usually led to a financially successful  life. (17) , the cost of education was not so high.
Today‟s world is entirely different from the things (18) have just been described. The job market is constantly changing due to innovative technology and new (19) . Meanwhile, most teenagers have difficulty in identifying their own interests. There are a variety of well-organized career talks and student counseling workshops to guide and help teenagers (20) what course to take. Furthermore, psychological tests are also used. Certain instruments such as surveys, interviews and computer software can help to find out preferences, interests, or learning styles of the students.
(17)........................

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.
Are you interested in seeing the beautiful fall foliage of New England but tired of traffic jams and overbooked hotels? Then this year forget the crowds in New England and see the beautiful colors of autumn in the Catskills.
These rugged mountains in New York State, just 90 miles northwest of New York City, are famous for the legendary tales of Rip Van Winkle, and more recently for the summer hotels that sprang up in the region during the 1940s, 1950s, and 1960s. Families trying to escape the heat of New York City found the Catskills to be the perfect place to stay for a month or so each summer. By the late 1950s there were over 500 resorts and hotels offering nighttime entertainment as well as all kinds of outdoor activities. Famous comedians like Jackie Gleason, Joan Rivers, and Sid Caesar all got their start touring the hotel clubs here. Since the introduction of air-conditioning and cheaper air travel, however, families have stopped coming to the Catskills in such large numbers, choosing instead more distant locations at different times of the year. Many of the Catskill hotels closed in the 1970s, but some remain and have expanded and changed their facilities to meet the needs of today's visitors.
Currently, there are many activities available to the traveler besides witnessing the changing colors of the leaves. There is an all-organic sheep farm where visitors can see how a traditional sheep farm operates. There are also hundreds of miles of scenic drives in the area. Route 42, for instance, is an excellent site for spotting bald eagles. For more information on vacations in the Catskills, call the Office of Public Information.

According to the passage, which of the following caused the decline in the number of resorts in the 1970s?

Read the following passage and choose the best answer for each blank.

The Middle East and North Africa are one of the driest regions on earth. Nearly two-thirds of the region is desert. The Sahara Desert of northern Africa is the largest desert in the world. Desert air (26) ____ little moisture, so few clouds form over the land. Without clouds to block the sun, temperatures may reach as (27) ____ as 125°F during the day. At night, without the clouds to contain the heat, the temperature can fall to as low as 125°F. Extreme temperatures (28) ____ with little rainfall make desert life difficult for people, plants, and animals. (29) ____, some life forms have adapted to even the most severe desert (30) ____, Camels are able to survive long periods without food or water. Many desert plants have long, shallow (31) ____ systems. This allows the plants to reach out to collect water over great distances. Other desert plants have taproots. Taproots grow very deep (32) ____ they can tap sources of underground water. Plant life in the desert is usually spread out over great distances. This is (33) ____ deserts are often described as barren, or lifeless. When many people think of a desert they often think of endless miles of hot sand, but a desert does not have to be hot or sandy. Most of the land of the Middle East and North Africa is hot, dry desert land, (34) ____ some deserts look very different. Most of Antarctica is a desert but there is no sand on the continent and the climate of Antarctica is (35) ____ coldest on earth.

(35) ____

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.
Are you interested in seeing the beautiful fall foliage of New England but tired of traffic jams and overbooked hotels? Then this year forget the crowds in New England and see the beautiful colors of autumn in the Catskills.
These rugged mountains in New York State, just 90 miles northwest of New York City, are famous for the legendary tales of Rip Van Winkle, and more recently for the summer hotels that sprang up in the region during the 1940s, 1950s, and 1960s. Families trying to escape the heat of New York City found the Catskills to be the perfect place to stay for a month or so each summer. By the late 1950s there were over 500 resorts and hotels offering nighttime entertainment as well as all kinds of outdoor activities. Famous comedians like Jackie Gleason, Joan Rivers, and Sid Caesar all got their start touring the hotel clubs here. Since the introduction of air-conditioning and cheaper air travel, however, families have stopped coming to the Catskills in such large numbers, choosing instead more distant locations at different times of the year. Many of the Catskill hotels closed in the 1970s, but some remain and have expanded and changed their facilities to meet the needs of today's visitors.
Currently, there are many activities available to the traveler besides witnessing the changing colors of the leaves. There is an all-organic sheep farm where visitors can see how a traditional sheep farm operates. There are also hundreds of miles of scenic drives in the area. Route 42, for instance, is an excellent site for spotting bald eagles. For more information on vacations in the Catskills, call the Office of Public Information.

 Which of the following most reflects the author's tone in this passage?

Read the passage carefully and choose the correct answer.

Approximately one-third of the Earth's land surface is desert, arid land with meager rainfall that supports only sparse vegetation and a limited population of people and animals. Deserts have been portrayed as fascinating environments of adventure and exploration. These arid regions are called deserts because they are dry. They may be hot. They may be cold. They may be regions of sand or vast areas of rocks with occasional plants

Deserts are natural laboratories in which to study the interactions of wind and sometimes water on the arid surfaces of planets. They contain valuable mineral deposits that were formed in the arid environment or that were exposed by erosion. Because deserts are dry, they are ideal places for human artifacts and fossils to be preserved. Deserts are also fragile environments. The misuse of these lands is a serious and growing problem in parts of our world.

There are many animals in the desert. Some are very large, like the kangaroo or the  gazelle. Both are big and have to travel long distances for water at a spring, or an oasis.  Another fairly large animal is the addax. The addax is a desert antelope. They live in the Sahara Desert. All addaxes are herbivores. There are less than 200 of them left because of hunting and tourists. Some animals crawl along. Examples of these are snakes and  lizards. Snakes rarely drink water; they get their moisture from other prey that they eat.  So do others, like the kangaroo rat. Lizards are commonly found in the desert. They stay  out of the sun and move as little as possible. There are also other animals in the desert.  The fennec lives in northern Africa in the Sahara Desert. They are a relative of the fox.  They eat mice, small birds, lizards, and insects. When necessary, they will eat fruit. One  more desert animal is the jerboa. The jerboa is a small, long-distance jumper that lives in the desert. They are free drinking animals and they eat plants, seeds, and bugs.

Deserts______.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to choose the word or phrase that best fits each of the numbered blanks from 26 to 30.
The joys and tribulations of being a pet owner! During our lifetime most of us have some experience of either owning a pet or being in close contact with someone who does. Is there such a thing as “the ideal pet”? If so what characterizes the ideal pet? Various (26)_______ influence one‟s choice of pet, from your reasons for getting a   pet (27)_______ your lifestyle. For example, although quite a few pets are relatively cheap to buy, the cost of (28)_______ can be considerable. Everything must be taken into account, from food and bedding, to vaccinations and veterinary bills. You must be prepared to spend time on your pet, (29)_______ involves shopping for it, cleaning and feeding it. Pets can be demanding and a big responsibility. Are you prepared to exercise and housetrain an animal or do you prefer a more independent pet? How much spare room do you have? Is it right to lock an energetic animal into a (30)_______ space? Do you live near a busy road which may threaten the life of your pet? Pets such as turtles and goldfish can be cheap and convenient, but if you prefer affectionate pets, a friendly cat or dog would be more appropriate. People get pets for a number of reasons, for company, security or to teach responsibility to children. Pets can be affectionate and loyal and an excellent source of company as long as you know what pet suit you and your lifestyle.
(26).....................

Read the passage below and decide whether the statements are TRUE or FALSE?

Choosing a career may be one of the hardest jobs you ever have, and it must be done with care. View a career as an opportunity to do something you love, not simply as a way to earn a living. Investing the time and effort to thoroughly explore your options can mean the difference between finding a stimulating and rewarding career and move from job to unsatisfying job in an attempt to find the right one. Work influences virtually every aspect of your life, from your choice of friends to where you live. Here are just a few of the factors to consider.

Deciding what matters most to you is essential to making the right decision. You may want to begin by assessing your likes, dislikes, strengths, and weaknesses. Think about the classes, hobbies, and surroundings that you find most appealing. Ask yourself questions, such as “Would you like to travel? Do you want to work with children? Are you more suited to solitary or cooperative work?” There are no right or wrong answers; only you know what is important to you. Determine which job features you require, which ones you would prefer, and which ones you cannot accept. Then rank them in order of importance to you.

Choosing a career may be one of the easily jobs you ever have, and it must be done with care.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions. 

It is not easy to choose a career today. Hundreds of students are leaving schools and universities every year  to  seek  employment  in  the  various  professions,  though  employment  opportunities  are  not  increasing proportionately. As a result, there is a lot of unemployment.   

 The inability of the various professions to absorb all those seeking employment makes the choice of a career more difficult. Before one leaves school or university, one has many plans, confident that choosing a career will not be difficult. But when, the time comes to choose a career, one finds that there are others with better qualifications waiting to enter the same profession.  Disillusioned, one then looks for  any  kind of employment.  In this way,  many  who  wanted  to  become  police  inspectors or field  assistants  in  the  rubber estates in this country,  become  teachers  instead,  and many who  wanted  to  become  teachers,  have  become shop assistants. The lack of institutions where people could acquire the skills necessary for a particular career makes the choice of a career even more difficult. For example, if one desires to become a journalist, one has to receive some training and instruction in a school of journalism. But if there is no such school, one is compelled to think of some other career.

_______ makes the choice of a career even more difficult.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions. 
If you’ve done any traveling at all, you’re likely quite aware that customs and etiquette differ from one culture to another: what may be perfectly innocuous in one place may be hideously offensive in another, and vice-versa. Granted, even if you haven’t traveled at all, you’re probably aware of the fact that certain types of behavior aren’t exactly acceptable in other countries: belching at the table may be a sign of gratitude in some places, but in most areas of North America and Europe, such a display will earn you a fair bit of ire. Whether you plan on traveling to any of the places listed below or just doing business with a foreign client, it’s important to educate yourself on the standards of politesse and etiquette beforehand—the last thing you want to do is offend someone with any ignorant, boorish behavior. Here’s how to be polite in different countries.
When dealing with Japanese clients, be sure to dress fairly conservatively, and make sure that you bow lower than they do upon meeting them. Accept gifts with both hands and open them later, not in front of the giver, and never blow your nose at the dining table. Avoid asking and answering direct questions: it’s better to imply rather than ask, and to answer with vagueness during conversations.
In Mexico, when meeting others, women should initiate handshakes with men, but all people should avoid making too much eye contact; that can be seen as aggressive and belligerent behavior. If sharing a meal with others, keep your elbows off the table and try to avoid burping at all costs. Keep your hands off your hips, and make sure you never make the “okay” sign with your hand: it’s vulgar.
In Kenya, when greeting someone older or of a higher status than yourself, grip their right wrist with your left hand while shaking it; it’s a sign of respect and deference. Do ask questions about their health, family, business etc. before getting to major topics, as skipping these niceties is seen as impolite. If sharing meals, do not begin eating until the eldest male has been served and starts to eat.
Turning down an alcoholic drink is considered terribly offensive in Russia, so it’s a good idea to fortify yourself with some greasy food before heading out for a meal with Russian or Ukrainian clients. Don’t smile at strangers or they’ll think you’re deranged, and when paying for items, place your money on the counter rather than trying to hand it directly to the cashier.

According to the passage, which of the following behavior should be avoided when sharing meals with others?

Choose the letter A, B, C or D to answer these following questions

Most of us are interested in one kind of sport or another, even if we don't go in for it actively. Lots of people take up a particular sport at an early age, for example tennis, skiing, or ice-skating. If they get up to a suitably high standard, they may go in for local competitions or even championships. But special training is hard work and most young people don't keep it up. Many of them opt out when they come up against tough competition.

To become a professional in any sport, you have to go through with a strict training schedule. And it's not easy! It means doing without some of life's little pleasures, too. For example, to build up your physical strength you may have to stick to a special diet and give up some of your favorite foods. Smoking and alcohol are out, and to keep fit you have to work out regularly every day.

Sometimes it all pays off, but the road to success is long and there are no guarantees. No wonder that countless young talents decide to settle for a regular job instead, and, as far as professional sport is concerned, for looking on as spectators.

To become professional in any sports, your strict training schedule would probably involve _________

Choose the item among A, B, C or D thai best answers the question about the passage:

"Desert is the term applied to regions of the earth that are characterized by less than 254 mm (10. inches) of annual rainfall, an evaporation rate that exceeds precipitation, and, in most cases, a high average temperature. Because of a lack of moisture in the soil and low humidity in the atmosphere, most of the sunlight penetrates to the ground. Daytime temperatures can reach 55° c (131° F) in the shade. At night the desert floor radiates heat back to the atmosphere, and the temperature can drop to near freezing. Deserts are caused by a combination of climate patterns and geological features.
 Because so little water moves through the desert soil to carry nutrients away, desert soils are naturally fertile. Crops are grown on desert lands with water provided by irrigation from rivers or wells. Such transformations of deserts are not without problems. Evaporation of the irrigation water results in the accumulation of salt on the surface soil, eventually rendering it useless for further crop production. By tapping reservoirs of fossil water deep beneath the desert, humans are, in effect, mining water. Once this water is gone, it is irreplaceable. Burning and overgrazing of semiarid lands on the periphery of deserts can irreversibly damage the plants that concentrate moisture and hold the soil together, thus enabling deserts to encroach on arable land. This encroachment, a serious world problem, is called desertification. A 1984 report of a desertification study made for the United Nations stated that 35 percent of the earth’s land surface was at least threatened by such processes."

1. What are the causes of the formation of deserts?

 Choose the word or phrase among A, B, C or D that best fits the blank space in the following passage:

"The Southwestern States of the United States suffered one of the worst droughts in their history from 1931 to 1938. The drought (1)…. the entire country. Few food crops could be grown. Food became (2)…., and prices went up (3)….  the nation. Hundreds of families in the Dust Bowl region had to be moved to farms in other areas with the help of the federal government. In 1944, drought brought great damage to (4)…. all Latin America. The drought moved to Australia and then to Europe, (5)…. it continued throughout the summer of 1945. From 1950 to 1954 in the United States, the Southwest suffered a (6)….. drought Hundreds of cattle ranches had to ship their cattle to other regions because (7)… lands had no grass. The federal government again (8)….. an emergency drought-relief program. Ít offered farmers (9)…. credit and seed grains (10)… low prices."

1. The drought (1)…. the entire country.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

   It is commonly believed in the United States that school is where people go to get an education. Nevertheless, it has been said that today children interrupt their education to go to school. The distinction between schooling and education implied by this remark is important.

   Education is much more open-ended and all-inclusive than schooling. Education knows no bounds. It can take place anywhere, whether in the shower or on the job, whether in a kitchen or on a tractor. It includes both the formal learning that takes place in schools and the whole universe of informal learning. The agents of education can range from a revered grandparent to the people debating politics on the radio, from a child to a distinguished scientist. Whereas schooling has a certain predictability, education quite often produces surprises. A chance conversation with a stranger may lead a person to discover how little is known of other religions. People are engaged in education from infancy on. Education, then, is a very broad, inclusive term. It is a lifelong process, a process that starts long before the start of school, and one that should be an integral part of one's entire life.

   Schooling, on the other hand, is a specific, formalized process, whose general pattern varies little from one setting to the next. Throughout a country, children arrive at school at approximately the same time, take assigned seats, are taught by an adult, use similar textbooks, do homework, take exams, and so on. The slices of reality that are to be learned, whether they are the alphabet or an understanding of the workings of government, have usually been limited by the boundaries of the subject being taught.

   For example, high school students know that they are not likely to find out in their classes the truth about political problems in their communities or what the newest filmmakers are experimenting with. There are definite conditions surrounding the formalized process of schooling.

What does the author probably mean by using the expression “children interrupt their education to go to school” (lines 2-3) ?

Read the following passage and choose the correct answer in each sentence.
On Monday, Lirong Wen will join the sales office as a management assistant. She will be a member of the customer service team — 135 — on the second floor. Also, on September 12, we will welcome Theo Sullivan back to the company. After taking two years off to complete a graduate degree, Theo will join the frozen foods departments — 136 — a senior production manager. He will — 137 — the team that processes the work order.
We are happy to welcome these two new members of our team. —138 —.

138............

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase for each of the blanks from 16 to 20.
As teenagers approach university level, a decision has to be made on what course to pursue. In this world of diversity, (16) such a choice is not easy for both children and parents. In the old days, it was not much a problem to do the task because there were not so many diverse learning areas to choose from. Besides, there were only a few distinctive professional careers like doctor, engineer, accountant, nurse, teacher, etc. to think about. Most higher learning usually led to a financially successful  life. (17) , the cost of education was not so high.
Today‟s world is entirely different from the things (18) have just been described. The job market is constantly changing due to innovative technology and new (19) . Meanwhile, most teenagers have difficulty in identifying their own interests. There are a variety of well-organized career talks and student counseling workshops to guide and help teenagers (20) what course to take. Furthermore, psychological tests are also used. Certain instruments such as surveys, interviews and computer software can help to find out preferences, interests, or learning styles of the students.
(16)........................

Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions:
    In the Native American Navajo nation which sprawls across four states in the American south-west, the native language is dying. Most of its speakers are middle-age or elderly. Although many students take classes in Navajo, the schools are run in English. Street sign, supermarket goods and even their own newspaper are all in English. Not surprisingly, linguists doubt that any native speakers of Navajo will remain in a hundred years' time.
    Navajo is far from alone. Half the world's 6,800 languages are likely to vanish within two generations - that's one language lost every ten days. Never before has the planet's linguistic diversity shrunk at such a pace. Isolation breeds linguistic diversity as a result, the world is peppered with languages spoken by only a few people. Only 250 languages have more than a million speakers, and at least 3,000 have fewer than 2,500. It is not necessarily these small languages that are about to disappear. Navajo is considered endangered despite having 150,000 speakers. What makes a language endangered is not that the number of speakers, but how old they are. If it is spoken by children it is relatively safe. The critically endangered languages are those that are only spoken by the elderly, according to Michael Krauss, director of the Alaska Native Language Center, in Fairbanks.
    Why do people reject the language of their parent? It begins with a crisis of confidence, when a small community finds itself alongside a larger, wealthier society, says Nicholas Ostler of Britain's Foundation for Endangered Languages, in Bath. “People lose faith in their culture” he says. "When the next generation reaches their teens, they might not want to be induced into the old tradition.” The change is not always voluntary. Quite often, governments try to kill off a minority language by banning its use in public or discouraging its use in school, all to promote national unity. The former US policy of running Indian reservation in English, for example, effectively put languages such as Navajo on the danger list. But Salikoko Mufwene, who chairs the Linguistics Department at the University of Chicago, argues that the deadliest weapon is not government policy but economic globalisation. "Native Americans have not lost pride in their language, but they have had to adapt to socio-economic pressures" he says. “They cannot refuse to speak English if most commercial activity is in English."
    However, a growing interest in cultural identity may prevent the direct predictions from coming true. ‘The key to fostering diversity is for people to learn their ancestral tongue, as well as the dominant language' says Doug Whalen, founder and president of the Endangered Language Fund in New Haven, Connecticut. “Most of these will live without a large degree of bilingualism” he says.

Who thinks that a change of language may mean a loss of traditional culture?

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.
There are many theories of aging, but virtually all fall into the category of hypotheses with a minimum of supporting evidence. One viewpoint is that aging occurs as the body's organ systems become less efficient. Thus failures in the immune system, hormonal system, and nervous system could all produce characteristics that we associate with aging. Following a different vein, many current researchers are looking for evidence at the cellular and sub cellular level. It has been shown that cells such as human fibroblasts (generalized tissue cells) grown in culture divide only a limited number of times and then die. Only cancer cells seem immortal in this respect. Fibroblast cells from an embryo divide more times than those taken from an adult. Thus some researchers believe that aging occurs at the cellular level and is part of the cell's genetic makeup. Any event that disturbs the cell's genetic machinery such as mutation, damaging chemicals in the cell's environment, or loss of genetic material, could cause cells to lose their ability to divide and thus bring on aging. Other theories of aging look at different processes. 
Chronological aging refers to the passage of time since birth and is usually measured in years. While chronological age can be useful in estimating the average status of a large group of people, it is a poor indicator of an individual person's status because there is a tremendous amount of variation from one individual to the next in regard to the rate at which biological age changes occur. For example, on the average, aging results in people losing much of their ability to perform strenuous activities, yet some elderly individuals are excellent marathon runners.
Another type of aging is cosmetic aging, which consists of changes in outward appearance with advancing age. This includes changes in the body and changes in other aspects of a person's appearance, such as the style of hair and clothing, the type of eyeglasses, and the use of a hearing aid. Like chronological aging, it is frequently used to estimate the degree to which other types of aging have occurred. However, it is an inaccurate indicator for either purpose because of variation among individuals and because a person's appearance is affected by many factors that are not part of aging, including illness, poor nutrition, and exposure to sunlight.

The author implies all of the following about cosmetic aging EXCEPT _____.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase for each of the blanks from 16 to 20.
As teenagers approach university level, a decision has to be made on what course to pursue. In this world of diversity, (16) such a choice is not easy for both children and parents. In the old days, it was not much a problem to do the task because there were not so many diverse learning areas to choose from. Besides, there were only a few distinctive professional careers like doctor, engineer, accountant, nurse, teacher, etc. to think about. Most higher learning usually led to a financially successful  life. (17) , the cost of education was not so high.
Today‟s world is entirely different from the things (18) have just been described. The job market is constantly changing due to innovative technology and new (19) . Meanwhile, most teenagers have difficulty in identifying their own interests. There are a variety of well-organized career talks and student counseling workshops to guide and help teenagers (20) what course to take. Furthermore, psychological tests are also used. Certain instruments such as surveys, interviews and computer software can help to find out preferences, interests, or learning styles of the students.
(18)........................