Mark the letter A, B, C, or D on your answer sheet to indicate the undelined part that needs correction in each of the following questions:
Carbohydrates, which are sugars, are an essential part of a healthy diet. They provide the main source of energy for the body, and they also function to flavor and sweeten foods. Carbohydrates range from simple sugars like glucose to complex sugars such as amylose ans amylopectin. Nutritionists estimate that carbohydrates should make up about one-fourth to one-fifth of a person’s diet. This translates to about 75-100 grams of carbohydrates per day.
A diet that is deficient in carbohydrates can have an adverse effect on a person’s health. When the  body lacks a sufficient amount of carbohydrates, it must then use  its protein supplies for energy, a process called gluconeogenesis. This, however, results in a lack of necessary protein, and further health difficulties may occur. A lack of carbohydrates can also lead to ketosis, a build-up of ketones in the body that causes fatigue, lethargy, and bad breath.

What is the main idea of this passage?

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

"Throughout the world there are different (1) …. for people to greet each other. In much of the world, a handshake is the (2)….  form of welcoming and greeting someone. In many countries around the Mediterranean Sea a (3) … kiss on the cheek is the appropriate way to welcome friends and family. It can be a very (4)… surprise if you expect to shake hands and get a kiss or a hug instead.
 At times, it is difficult to tell what sort of greeting (5)… is followed. People may bow, (6)….. another’s arm or even slap the other person on the back. In some places people just smile, look at (7)….. face and say nothing.
 Most people in the world are (8) ….of visitors and don’t mind what travelers do that seems wrong as long as the visitors are (9)… . A big part of the (10)…. of world travel is experiencing different customs."

1. Throughout the world there are different (1) …. for people to greet each other.

Choose the best answer:
In Korea, in former days the marriage between a man and woman represented the joining of two families, rather (50) ______ the joining of two individuals. The event (51) ______ Taerye (Great Ritual), and people from all over the village or neighborhood participated. The ceremonies and events surrounding the actual marriage were long and (52) ______. Professional matchmakers paired up likely candidates for marriage, with the new couple often meeting for the first time at their wedding! The families considered many factors in the decision, consulting with fortune tellers for (53) ______ about the couple's future life together. During the Chosun period, people married (54) ______ their early teens, with the girl often being several years older than the boy. The groom usually traveled to the house of the bride for the ceremony, then stayed there for three days (55) ______ taking his new bride to his family's home. The actual ceremony involved many small rituals, with many bows and symbolic gestures. The (56) ______ were expected to control their emotions and remain somber. (57) ______ Koreans have kept several aspects of the traditional ceremony, most modern ceremonies resemble Western marriage ceremonies more than (58) ______ Korean ones. However, many folk villages and museums across the country regularly perform ceremonies to (59) ______ the traditions alive

Choose the best answer:
Few people now question the reality of global warming and its effects on the worlds climate. Mary scientists (1) ________ the blame for recent natural disasters on the increase in the worlds temperatures and are convinced that, more than (2) ________ before, the Earth is at risk from the forces of the wind, rain and sun. (3) ________ to them, global warming is making extreme weather events, such as hurricanes and droughts, even more (4) ________ and causing sea levels all around the world to (5) ________ . Environmental groups are putting (6) ________ on govemments to take action to reduce the amount of carbon dioxide which is given (7) ________ by factories and power plants, thus attracking the problem at its source. They are in (8) ________ of more money being spent on research into solar, wind and wave energy devices, which could then replace existing power (9) ________ . Some scientists, (10) ________ , believe that even if we stopped releasing carbon dioxide and other gases into the atmosphere tomorrow, we would have to wait several hundred years to notice the result. Global I warming, it seems, is to stay

Choose the best answer:
The reality of an interview is never as bad as your fears. For some reasons, people imagine the interview is going to jump on every tiny mistake they (1) _____. In truth, the interviewer is as keen for the meeting to go well (2) _____ you are. It is what makes his or her job (3) ______. The secret of a good interview is preparing for it.What you wear is always important as it creates the first impression. So (4) _____ neatly, but comfortably. Make (5)______ that you can deal with anything you are asked. Prepare for questions that are certain to come up, for example: Why do you want to become anurse? What is the most important (6) ______ a good nurse should have? Apart from nursing, what other careers have you (7) ______? What are your interests and hobbies? Answer the questions fully and precise. For instance, if one of your interests is reading, be prepared to talk about the sort of books you like. (8)_____, do not learn all the answers off by heart. The interviewer wants to meet a human (9) ____, not a robot. Remember, the interviewer is genuinely interested in you, so the more you relax and are yourself, the more (10) ____you are to succeed

Choose the best answer:
Reference books are not designed to be read from the first page to the last but rather to be consulted to answer the questions and provide both general and specific pieces of information. One of the most (1) _______-used reference books is a dictionary, which provides information about words. It lists meanings and spellings, (2) _______ how a word is pronounced, gives (3) _______of how it is used, may reveal its origins and also lists synonyms and (4) _______. To help you find the words faster, there are guide words at the top of each page showing the first and last words on that page and of course it (5) _______ to know the alphabet! There may be numerous special sections at the back with (6) _______ about famous people and places, lists of dates and scientific names, etc. There is usually a section at the front (7) _______ how to use the dictionary, which includes the special abbreviations or signs. An atlas is also a reference book and (8) _______ charts, tables and geographical facts, as well as maps. Political maps locate countries and cities, physical maps show the formation of the land with its mountains and valleys, and economic maps show industries and agriculture. To find a specific place, you need to look in the (9) _______ at the back of the atlas and the exact position on the map. There are numerous map (10) _______ that you need to know in order to be able to read a map-almost like a special language-and these are explained at the front of the atlas

Mark the letter A, B, C, or D on your answer sheet to indicate the undelined part that needs correction in each of the following questions:
It's called 42 - the name taken from the answer to the meaning of life, from the science fiction series The Hitchhiker's Guide to the Galaxy. 42 was founded by French technology billionaire Xavier Niel, whose backing means there are no tuition fees and accommodation is free. Mr Niel and his co-founders come from the world of technology and start-ups, and they are trying to do to education what Facebook did to communication and Airbnb to accommodation.
Students at 42 are given a choice of projects that they might be set in a job as a software engineer - perhaps to design a website or a computer game. They complete a project using resources freely available on the Internet and by seeking help from their fellow students, who work alongside them in a large open- plan room full of computers. Another student will then be randomly assigned to mark their work.
The founders claim this method of learning makes up for shortcomings in the traditional education system, which they say encourages students to be passive recipients of knowledge. "Peer-to-peer learning develops students with the confidence to search for solutions by themselves, often in quite creative and ingenious ways."
Like in computer games, the students are asked to design and they go up a level by completing a project. They graduate when they reach level 21, which usually takes three to five years. And at the end, there is a certificate but no formal degree. Recent graduates are now working at companies including IBM, Amazon, and Tesla, as well as starting their own firms.
"The feedback we have had from employers is that our graduates are more apt to go off and find out information for themselves, rather than asking their supervisors what to do next," says Brittany Bir, chief operating officer of 42 in California and a graduate of its sister school in Paris. Ms Bir says 42's graduates will be better able to work with others and discuss and defend their ideas - an important skill in the "real world" of work. "This is particularly important in computer programming, where individuals are notorious for lacking certain human skills," she says.
But could 42's model of teacherless learning work in mainstream universities? Brittany Bir admits 42's methods do not suit all students. "It suits individuals who are very disciplined and self- motivated, and who are not scared by having the freedom to work at their own pace," she says.

It can be inferred from the passage that     .

Choose the best answer:
How many times in the last hundred years or so have people talked of the imminent death of the book? Films were an early threat because they were so effective at telling stories in a visual way. Next there was radio, (26)...... stepped into the mid-twentieth century and provided such an alternative to books as drama, documentaries and discussions. When television arrived, many people believed that it would finish the book off. Nowadays, (27)............ the threat by TV, the book is thought to be endangered by computers and the Internet, and by other technological attractions (28).........  theCD and the video game, too Surely there are now reasons why (29).............  book ought to be dead, or at least very badly injured. If so, why does it not show proper respect for these reportedly less literate times (30)......... die out? There is clearly more than a single answer to this question. Firstly, we have more leisure time than we (31)..........  to, and people are generally living longer, which means there is more time to do more (including reading books). As (32)............ as this, there is the strength of the book as a tradition. We are all too dismissive of traditions in our modern world, but they can have very strong pull (33)....... us. Added to this, the book is such a practical tool: it doesn't cost too (34).......... , it is usually small enough to carry around, and it can easily be (35)......... . We will never go without books, because they have served us so well for so long

Choose the best answer:
Everyone wants to reduce pollution. But the pollution problem is (33)______ complicated as it is serious. It is complicated (34)______ much pollution is caused by things that benefit people. (35)______, exhaust from automobiles causes a large percentage of air pollution. But the automobile (36)______ transportation for millions of people. Factories discharge much (37)______ the material that pollutes the air and water, but factories give employment to a large number of people Thus, to end (38)_______ greatly reduce pollution immediately, people would have to (39)______ using many things that benefit them. Most of the people do not want to do that, of course. But pollution can be (40)______ reduced in several ways. Scientists and engineers can work to find ways to lessen the (41)______ of pollution that such things as automobiles and factories cause. Governments can pass and enforce laws that (42)______ businesses and traffic to stop, or to cut down on certain polluting activities

Choose the best answer:
Bodies are made to move! They are not (19) _________for sitting around in front of the television or reading magazines. Keeping fit doesn‘t (20) _________you have to be a super-athlete, and even (21) ______exercise can give you a lot of fun. When you are fit and healthy, you will find you look better and feel better. You will develop more energy and self-confidence. Every time you move, you are exercising. The human body is designed to bend, stretch, run, jump and climb. (22) _________ it does, the stronger and fitter it will become. Best of all, exercise is fun. It‘s what your body likes doing most-keeping on the (23) _________. Physical exercise is not only good for your body. People who take regular exercise are usually happier, more relaxed and more alert (24) _________ people who sit around all day. Try an experiment-next time you are (25) _________a bad mood, go for a walk or play a ball game in the park. See how much better you feel after an hour. A good (26) _________of achievement is yet another benefit of exercise. People feel good about themselves when they know they have (27) _________their fitness. People who exercise regularly will tell you that they find they have more energy to enjoy life. So have (28) _________-you‘ll soon see and feel the benefits

Choose the best answer:
We are using up the world‘s petroleum. We use (1) ______ in our cars and to heat our building in winter. Farmers use petrochemicals to (2) ____ the soil rich. They use them to kill insects (3) ______ eat plants. These chemicals go (4) ______ rivers and lakes and kill the fish there. Thousands of pollutants also go into the air and pollute it. Winds carry this (5) _____ air to other countries and other continents. Poor farmers use the same land over and (6) _____ The land needs a rest so it will be better next year. However, the farmers must have food this year. Poor people cut down forests (7) _____ firewood. In some areas when the trees are gone, the land (8) ______ desert. Poor people can‘t save the environment for the (9) _____ . This is not a problem for one country or one area of the world. It is a problem for allhumans. The people and the nations of the world must work together to (10) _______ the world‘s resources

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

"Throughout the world there are different (1) …. for people to greet each other. In much of the world, a handshake is the (2)….  form of welcoming and greeting someone. In many countries around the Mediterranean Sea a (3) … kiss on the cheek is the appropriate way to welcome friends and family. It can be a very (4)… surprise if you expect to shake hands and get a kiss or a hug instead.
 At times, it is difficult to tell what sort of greeting (5)… is followed. People may bow, (6)….. another’s arm or even slap the other person on the back. In some places people just smile, look at (7)….. face and say nothing.
 Most people in the world are (8) ….of visitors and don’t mind what travelers do that seems wrong as long as the visitors are (9)… . A big part of the (10)…. of world travel is experiencing different customs."

6. People may bow, (6)….. another’s arm or even slap the other person on the back. 

Mark the letter A, B, C, or D on your answer sheet to indicate the undelined part that needs correction in each of the following questions:
As a result of pollution, Lake Erie, on the borders of the USA and Canada, is now without any living things. Pollutions in water are not simply a matter of “poisons” killing large numbers of fish overnight. Very often the effects of pollution are not noticed for many months or years because the first organisms to be affected are either plants or plankton. But these organisms are the food of fish and birds and other creatures. When this food disappears, the fish and birds die in this way a whole food chain can be wiped out, and it is not until dead fish and water birds are seen at the river’s edge or on the sea shore that people realize what is happening. Where do the substances which pollute the water come from? There are two main sources – sewage and industrial waste. As more detergent is used in the home, so more of it is finally put into our rivers, lakes and seas. Detergents harm water birds dissolving the natural substance which keep their feather waterproof. Sewage itself, if it is not properly treated, makes the water dirty and prevents all forms of life in rivers and the sea from receiving the oxygen they need. Industrial waste is even more harmful since there are many high poisonous things in it, such as copper and lead. So, if we want to stop this pollution, the answer is simple, sewage and industrial waste must be made clean before flowing into the water. It may already be too late to save some rivers and lakes, but others can still be saved if the correct action is taken at once.

What is the meaning of “waterproof” in the second paragraph?

Choose the best answer:
Education is more important today than ever before. It helps people acquire the skills they need for such everyday (13)_______ as reading a newspaper or managing their money. It also gives them the specialized training they may need to (14)_______ for a job or career. For example, a person must meet certain educational requirements and obtain a (15)_______ or certificate before he can practice law or medicine. Many fields, like computer operation or police work, (16)_______ satisfactory completion of special training courses. Education is also important (17)_______ it helps people get more out of life. It increases their knowledge and understanding of the world. It helps them acquire the skills that make life more interesting and enjoyable, (18)_______ the skills needed to participate in a sport, paint a picture, or play a musical (19)_______ . Such education becomes (20)_______ important as people gain more and more leisure time. Education also helps people adjust to change. This habit has become necessary because social changes today take place with increasing speed and (21)_______ the lives of more and more people. Education can help a person understand these changes and provide him (22)_______ the skills for adjusting to them

Choose the best answer:
All over the world, people are changing the face of the earth. Wild areas are cleared for farming and to build roads and expand cities. Our factories, cars, and power stations poison the ….(1) with polluting gases and chemical waste. As well as transforming the environment, we are destroying habitats, the home of ……(2) plants and animals. Living things have evolved over millions of years. Many animals and plants can only …….(3) in certain environments. When such areas destroyed, wildlife cannot always ……..(4) to the new conditions and some species may…….(5) out. Thousands of species of plants and animals face extinction because of human activities. People can also…….(6) from habitat destruction. When forests are cut down, earth is washed away, this causes crop failures and starvation. There is the future to consider, too; plants provide essential foods and can also be used in medicines. If species……..(7) extinct, their potential value will never be known. The scale of destruction is enormous. Swamps, forests, grasslands and jungles are being cleared at an increasing extend. Half of the world‘s tropical rainforests have……..(8) been destroyed. Coral reefs, called the forests of the ocean because they are so rich in life, are……..(9) around the world. We must limit the damage to habitats now………(10) they remain a valuable resource for the future

Mark the letter A, B, C, or D on your answer sheet to indicate the undelined part that needs correction in each of the following questions:
Every drop of water in the ocean, even in the deepest parts, responds to the forces that create the tides. No other force that affects the sea is so strong. Compared with the tides, the waves created by the wind are surface movements felt no more than a hundred fathoms below the surface. The currents also seldom involve more than the upper several hundred fathoms despite their impressive sweep.
The tides are a response of the waters of the ocean to the pull of the Moon and the more distant Sun. In theory, there is a gravitational attraction between the water and even the outermost star of the universe. In reality, however, the pull of remote stars is so slight as to be obliterated by the control of the Moon and, to a lesser extent, the Sun.
Just as the Moon rises later each day by fifty minutes, on the average, so, in most places, the time of high tide is correspondingly later each day. And as the Moon waxes and wanes in its monthly cycle, so the height of the tide varies. The tidal movements are strongest when the Moon is a sliver in the sky, and when it is full. These are the highest flood tides and the lowest ebb tides of the lunar month and are called the spring tides. At these times the Sun, Moon, and Earth are nearly in line and the pull of the two heavenly bodies is added together to bring the water high on the beaches, to send its surf upward against the sea cliffs, and to draw a high tide into the harbors. Twice each month, at the quarters of the Moon, when the Sun, Moon, and Earth lie at the apexes of a triangular configuration and the pull of the Sun and Moon are opposed, the moderate tidal movements called neap tides occur. Then the difference between high and low water is less than at any other time during the month.

The words “In reality” in line 8 are closest in meaning to

Fill in each numbered blank with one suitable word or phrase.

In Korea, in former days the marriage between a man and woman represented the joining of two families, rather (1) ______ the joining of two individuals. The event (2) ______ Taerye (Great Ritual), and people from all over the village or neighborhood participated. The ceremonies and events surrounding the actual marriage were long and (3) ______. Professional matchmakers paired up likely candidates for marriage, with the new couple often meeting for the first time at their wedding! The families considered many factors in the decision, consulting with fortune tellers for (4) ______ about the couple's future life together. During the Chosun period, people married (5) ______ their early teens, with the girl often being several years older than the boy. The groom usually traveled to the house of the bride for the ceremony, then stayed there for three days (6) ______ taking his new bride to his family's home. The actual ceremony involved many small rituals, with many bows and symbolic gestures. The (7) ______ were expected to control their emotions and remain somber. (8) ______ Koreans have kept several aspects of the traditional ceremony, most modern ceremonies resemble Western marriage ceremonies more than (9) ______ Korean ones. However, many folk villages and museums across the country regularly perform ceremonies to (10) ______ the traditions alive.

(8) ______

Choose the best answer:
We are using up the world‘s petroleum. We use (1) ______ in our cars and to heat our building in winter. Farmers use petrochemicals to (2) ____ the soil rich. They use them to kill insects (3) ______ eat plants. These chemicals go (4) ______ rivers and lakes and kill the fish there. Thousands of pollutants also go into the air and pollute it. Winds carry this (5) _____ air to other countries and other continents. Poor farmers use the same land over and (6) _____ The land needs a rest so it will be better next year. However, the farmers must have food this year. Poor people cut down forests (7) _____ firewood. In some areas when the trees are gone, the land (8) ______ desert. Poor people can‘t save the environment for the (9) _____ . This is not a problem for one country or one area of the world. It is a problem for allhumans. The people and the nations of the world must work together to (10) _______ the world‘s resources.

Choose the best answer:
Parents whose children show a special interest in a particular sport have a difficult decision to (1) ______ about their children‘s career. Should they (2) ______ their children to train to become top sportsmen and women? For many children it (3) ______starting very young and school work, going out with friends and other (4) ______ have to take second place. It‘s very difficult to explain to a young child why he or she has to train for five hours a day, even at the weekend, when (5) _______ of his or her friends are playing. Another problem is of course money. In many countries money for training is (6) ______ from the government for the very best young sportsmen and women. If this help cannot be given, it means that it is the parents (7) ______ have to find the time and the money to support their child‘s development- and sports clothes, transport to competitions, special equipment etc. can all be very expensive. Many parents are understandably (8) _______ that it is dangerous to start serious training in a sport at an early age. Some doctors agree that young (9) _______ may be damaged by training before they are properly developed. Professional trainers, however, believe that it is only by starting young that you can reach the top as a successful sports person. What is clear is that very (10) _______ people reach the top and both parents and children should be prepared for failure even after many years of training

Choose the letter A, B, C or D to complete the passage below.

"Daur Chick Liver Tradition: Inner Mongolia, China

Time to get mystical. To select a wedding date, the young couple must take a knife and together slaughter a chick. The date is then divined by the appearance of the chick’s liver. If the liver has an unfortunate appearance, they must keep __________ (1) chicks until they find a good one."

1.  If the liver has an unfortunate appearance, they must keep __________ (1) chicks until they find a good one

Choose the best answer:
My younger sister is a potential star of state and screen, or at least that's what she tells me. Last week she had an interview. It was for the (38)……………..of Juliet in Shakespear‘s Romeo and Juliet. It went well and she starts (39)……………..next week. This is the first play that she has been in, but she has done quite a lot of TV advertising work and she has been in a couple of films. The last film she was in was called The magician. It was set in ancient Egypt and she was in a crowd (40)……………..with thousands of other people When I went to see it, I sat in the front (41)…………….. so that I could see the (42)…………….. really clearly, but I couldn‘t pick out my sister in the crowd. She says the (43)……………..was one of the best professionals she has worked with but I must say the (44)……………..seemed a bit stupid to me. It was all about a very clever magician who had managed to travel back through time to the Court of Tutankhamen. The (45)……………..were magnificent and so were some of the sets but having an actor saying (46)……………..in present day American English just didn‘t work. The ending was really ridiculous. The magician got accidentally buried with Tutankhamen. Funnily enough, the rest of the (47)……………..seemed to have rather enjoyed the film