Choose the item (A, B, C or D) that best completes the following sentences

One of the greatest advantages of robots is that they can work in situations that are dangerous or harmful for human workers. For example, the continuous smell of paint has a harmful effect on painters, but it doesn't "bother" a robot. Robots can work in nuclear power plants and in undersea research stations that might be dangerous for humans. Already, robots are working in the plastics industry and in chemical and industrial equipment industries. One  of the most common uses of robots is still in automobile factories. They can do the heavy, unpleasant, or dangerous work. These kinds of industrial robots are not usually "mobile". The work they need to do is brought to them, like cars on an assembly line, for example.

The robot industry is a big business. By the middle of the 1990s, Japan' led the world in robot production with more than 71,000 industrial robots at work. Both the United States and Japan, as well as other countries, continue to develop more advanced robots. Robots can now be made to perform more complex jobs. Robots can make decisions while they are working  and learn from their mistakes. Robots can now see with TV camera "eyes." They can easily hear and can even speak using a voice made by a computer. But it is difficult to make a robot "understand." Thinking and understanding are very human qualities. The robots of the future will probably be very complex. They will be able to perform many humanlike tasks. Robots and other technology will make the future a very interesting place!

Which of the following can be the opposite of the word "mobile" in the first paragraph?

Read the passage below and choose the best answer (A, B, C or D ) to each question.

The movement of people towards cities has accelerated in the past 40 years, particularly in the less developed regions, and the share of the global population living in urban areas has increased from one third in 1960 to 47% (2.8 billion people) in 1999. The world's urban population is now growing by 60 million persons per year, about three times the increase in the rural population.

Increasing urbanisation results about equally from births in urban areas and from the continued movement of people from the rural surround. These forces are also feeding the sprawl of urban areas as formerly rural peri-urban settlements become incorporated into nearby cities and as secondary cities, linked by commerce to larger urban centres, grow larger.

The proportion of people in developing countries who live in cities has almost doubled since 1960 (from less than 22% to more than 40%), while in more-developed regions the urban share has grown from 61% to 76%. There is a significant association between this population movement from rural to urban areas and declines in average family size.

Asia and Africa remain the least urbanised of the developing regions (less than 38% each). Latin America and the Caribbean is more than 75% urban, a level almost equal to those in Europe, Northern America and Japan (all are between 75 and 79%).

Urbanisation is projected to continue well into the next century. By 2030, it is expected that nearly 5 billion (61%) of the world's 8.1 billion people will live in cities. The less-developed regions will be more than 57% urban. Latin America and the Caribbean will actually have a greater percentage of inhabitants living in cities than Europe will.

Globally, the number of cities with 10 million or more inhabitants is increasing rapidly, and most of these new 'megacities' are in the less-developed regions. In 1960, only New York and Tokyo had more than 10 million people. By 1999, there were 17 cities of more than 10 million people around the world, 13 of these were in less-developed regions. It is projected that there will be 26 megacities by 2015, 22 in less-developed regions (18 will be in Asia); more than 10% of the world's population will live in these cities, up from just 1.7% in megacities in 1950.

As in paragraph 4, what is the percentage of urbanisation in Latin America and the Caribbean?

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

   Contrary to popular belief, one does not have to be a trained programmer to work online. Of course, there are plenty of jobs available for people with high-tech computer skills, but the growth of new media has opened up a wide range of Internet career opportunities requiring only a minimal level of technical expertise. Probably one of the most well-known online job opportunities is the job of webmaster. However, it is hard to define one basic job description for this position. The qualifications and responsibilities depend on what tasks a particular organization needs a webmaster to perform.

   To specify the job description of a webmaster, one needs to identify the hardware and software that the website the webmaster will manage is running on. Different types of hardware and software require different skill sets to manage them. Another key factor is whether the website will be running internally (at the firm itself) or externally (renting shared space on the company servers). Finally, the responsibilities of a webmaster also depend on whether he or she will be working independently, or whether the firm will provide people to help. All of these factors need to be considered before one can create an accurate webmaster job description.

   Webmaster is one type of Internet career requiring in-depth knowledge of the latest computer applications. However, there are also online jobs available for which traditional skills remain in high demand. Content jobs require excellent writing skills and a good sense of the web as a “new media”.

   The term “new media” is difficult to define because it encompasses a constantly growing set of new technologies and skills. Specifically, it includes websites, email, Internet technology, CD-ROM, DVD, streaming audio and video, interactive multimedia presentations, e-books, digital music, computer illustration, video games, virtually reality, and computer artistry.

   Additionally, many of today’s Internet careers are becoming paid-by-the-job professions. With many companies having to downsize in tough economic items, the outsourcing and contracting of freelance workers online has become common business practice. The Internet provides an infinite pool of buyers from around the world with whom freelancers are able to work on projects with companies outside their own country of residence.

   How much can a person make in these kinds of career? As with many questions related to today’s evolving technology, there is no simple answer. There are many companies willing to pay people with technical Internet skills salaries well above $70,000 a year. Generally, webmasters start at about $30,000 per year, but salaries can vary greatly. Freelance writers working online have been known to make between $40,000 and $70,000 per year.

The word “identify” in paragraph 2 is closest in meaning to _____.

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.
Around the age of sixteen, you must make one of the biggest decisions of your life. “Do I stay on at school and hopefully go on to university (1)..... ? Do I leave and start work or begin a training course. The decision is yours, but it may be (2).....  remembering two things: there is more unemployment among those who haven’t been to university, and people who have the right skills will have a big advantage in the competition for jobs. If you decide to go (3)..... into a job, there are many opportunities for training. Getting qualifications will help you to get on more quickly in many careers, and evening classes allow you to learn (4) .....you earn. Starting work and taking a break to study when you are older is another possibility. In this way, you can save up money for your student days, as well as (5) .....practical work experience.
(3)............................

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.
Everyone, old or young, should think about joining a sports club. There are many benefits of being a (1).........of a club. First of all, you have the opportunity not just to play your favorite sport on a regular basis, but also to improve. Most clubs have training sessions or even professionals who (2)..... lessons. Secondly, it’s a chance to meet people who enjoying doing the same things as you so you will probably get (3)....... with them and end up with a good network of friends. Also these clubs usually have an excellent social life as they arrange parties and special occasions at the club where you can meet to talk and eat together and generally have a good time. Many people (4)..........up sports in their early teens but it is good idea to continue as doing sport is a way of relieving stress and giving you more energy as well as being a good break from your studies. Best of all, a lot of clubs can arrange to get tickets for top sporting events that are hard to (5)................This means you can often get front row seats for matches and competitions in your favorite sport, or you may even be able to see your favorite team. Well worth joining!
(5).............................

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.
It is a well-known fact that Japanese people have a longer life expectancy than the population of most other countries. A (1)..................report shows that the Japanese also expect to remain healthier for longer. Scientists are trying to work out what keeps elderly Japanese people so healthy, and whether there is a lesson to be learnt from their lifestyles. Should we (2).........any changes to our eating habits, for instance, or go jogging each day before breakfast? Is there some secret (3)........ in the Japanese diet that is particularly beneficial for the human body? Although the prospect of a longer , healthier life is a good thing for the individual, it can actually create a social problem. The number of people over the age of 65 in the population has doubled in the last 50 years and that has increased pension and medical costs. Japan could soon be (4)........... an economic problem: there are more elderly people who need to be looked after. And relatively fewer younger people working and paying taxes to support them. One solution could be to (5)............ retirement age from 65 to 70 . After all, the elderly have a great deal to contribute. If they continue to be active in society, younger generations will have the chance to learns more from their wisdom and experience.
(1).............................

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

   How would you like (1) _______work in the fast-growing tech sector? Information technology is the #1 field in (2)_______ of expected job growth over the next decade,(3) _______makes systems engineers among the most highly sought after professionals today. The average salary for a systems engineer is $87,100, and the career field is expected to grow 45% over the next 10 years. To become a systems engineer, you need a bachelor’s (4)_______in engineering.

   Software architects have taken the title as the best job in the country with job growth of 34% and an average annual salary of $119,000 per year. These innovative engineering professionals are responsible for (5)_______ to analyze and store data.

(4)........................

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

Most people need some preparation before they are (1) ____ for the workforce, and planning should begin long before it is time to start a career. 

Many high school students don't yet know what they want to do. High school is a great time to start thinking about careers. Setting on just one (2) ____ in high school isn't necessary, but they should know how to explore careers and put time into investigating them and learning about their skills and interests.

Understanding what you enjoy and what you are good at is the first step in (3) ____ careers. It is important to think about what you like to do because work will eventually be a big part of the life. Once you have thought about the subjects and activities you like best, the next step is to look for careers that put those interests to use. If you love sports, for example, you might (4) ____ a career as a gym teacher, or a coach.

Another approach to identifying potential career interests is to consider local employers and the types of jobs they have. There are many jobs in manufacturing and healthcare near the high school. Talking directly to workers can help you get (5) ____ about what they do. If you don't know workers in occupations (6) ____ interest you, ask people such as parents, friends, or teachers for their (7) ____.

If job (8) ____ gives you a taste of what an occupation is like, imagine how helpful getting experience could be. Students can begin getting career-related experiences in high school through internships, employment, and other activities. Completing an internship is an excellent (9) ____ get experience. Internships are temporary, supervised (10) ____ designed to give students practical job training.

(6) ______

Choose the best answer: 
Archaeological records ― paintings, drawings, and carvings of humans engaged in activities involving the use of hands ― indicate that humans have been predominantly right-handed for more than 5,000 years. In ancient Egyptian artwork, for example, the right-hand is depicted as the dominant one in about 90percent of the examples. Fracture or wear patterns on tools also indicate that a majority of ancient people were right-handed. Cro-Magnon cave paintings some 2,000 years old commonly show outlines of human hands made by placing one hand against the cave wall and applying paint with the other. Children today make similar outlines of their hands with crayons on paper. With few exceptions, left hands of Cro-Magnons are displayed on cave walls, indicating that the paintings were usually done by right- handers. Anthropological evidence pushes the record of handedness in early human ancestors back to at least 1.4 million years ago. One important line of evidence comes from flaking patterns of stone cores used in toolmaking: implements flaked with a clockwise motion (indicating a right-handed toolmaker) can be distinguished from those flaked with a counter-clockwise rotation (indicating a left-handed toolmaker). Even scratches found on fossil human teeth offer clues. Ancient humans are thought to have cut meat into strips by holding it between their teeth and slicing it with stone knives, as do the present-day Inuit. Occasionally the knives slip and leave scratches on the users' teeth. Scratches made with a left-to-right stroke direction (by right-handers) are more common than scratches in the opposite direction (made by left-handers). Still other evidence comes from cranial morphology: scientists think that physical differences between the right and left sides of the interior of the skull indicate subtle physical differences between the two sides of the brain. The variation between the hemispheres corresponds to which side of the body is used to perform specific activities. Such studies, as well as studies of tool use, indicate that right- or leftsided dominance is not exclusive to modern Homo sapiens. Populations of Neanderthals, such as Homo erectus and Homo habilis, seem to have been predominantly right-handed, as we are.
4.:The word "clues" in paragraph 4 is closest in meaning to

Read the following passage and choose among A, B, C or D the correct answer to each of the questions.

INTERNET JOBS

Contrary to popular belief, one does not have to be a trained programmer to work online.

Of course, there are plenty of jobs available for people with high-tech computer skills, but the growth of new media has opened up a wide range of Internet career opportunities requiring only a minimal level of technical expertise. Probably one of the most well-known online job opportunities is the job of Webmaster. However, it is hard to define one basic job description for this position. The qualifications and responsibilities depend on what tasks a particular organization needs a Webmaster to perform.

To specify the job description of a Webmaster, one needs to identify the hardware and software the website the Webmaster will manage is running on. Different types of hardware and software require different skill sets to manage them. Another key factor is whether the website will be running internally or externally (renting shared space on the company servers). Finally, the responsibilities of a webmaster also depend on whether he or she will be working independently, or whether the firm will provide people to help. All of these factors need to be considered before one can create an accurate webmaster job description.

Webmaster is one type of Internet career requiring in-depth knowledge of the latest computer applications. However, there are also online jobs available for which traditional skills remain in high demand. Content jobs require excellent writing skills and a good sense of the web as a "new media'.

The term "new media" is difficult to define because it compasses a constantly growing set of new technologies and skills. Specifically, it includes websites, email internet technology, CD- ROM, DVD, streaming audio and video, interactive multimedia presentations, e-books, digital music, computer illustration, video games, virtual reality, and computer artistry.

Additionally, many of today's Internet careers are becoming paid-by-the-job professions. With many companies having to downsize in tough economic items, the outsourcing and contracting of freelance workers online has become common business practice. The Internet provides an infinite pool of buyers from around the world with whom freelancers can contract their services. An added benefit to such their own country. online jobs is that freelancers are able to work on projects with companies outside

How much can a person make in these kinds of careers? As with many questions related to today's evolving technology, there is no simple answer. There are many companies willing to pay people with Internet skills salaries well over 70,000 a year. Generally, web masters start at about 70,000 30,000 per year, but salaries can vary greatly. Freelance writers working online have been known to make between 40,000 to 70,000 a year. 

The word "vary" in paragraph 6 can be best replaced by ____.

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the best option for each of the blanks from 11 to 15.
Women are much healthier when they (11) it easy, reveals a new survey. Those who work long hours are more likely than men to (12) in unhealthy behavior such as eating snacks, smoking and drinking caffeine. (Long hours have no such impact on men). One positive benefit of long hours for both sexes, however, is that alcohol (13) is reduced.
The study (14)  by the Economic and  Social Research Council is part of a wider study by psychologists from the University of Leeds into the effects of stress on eating. “Stress causes people to
(15) for unhealthy high fat and high-sugar snacks in preference to healthier food choice” says researcher Dr. Daryl of the University of Leeds.
(14)........................

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.
You can usually tell when your friends are happy or angry by the looks on their faces or by their actions. This is useful because reading their emotional expressions helps you to know how to respond to them. Emotions have evolved to help us respond to important situations and to convey our intentions to others. But does raising the eyebrows and rounding the mouth say the same thing in Minneapolis as it does in Madagascar? Much research on emotional expressions has centered on such questions.
According to Paul Ekman, the leading researcher in this area, people speak and understand substantially the same "facial language". Studies by Ekman's group have demonstrated that humans share a set of universal emotional expressions that testify to the common biological heritage of the human species. Smiles, for example, signal happiness and frowns indicate sadness on the faces of people in such far- flung places as Argentina, Japan, Spain, Hungary, Poland , Sumatra ,the United States, Vietnam, the jungles of New Guinea , and the Eskimo villages north of Artic Circle. Ekman and his colleagues claim that people everywhere can recognize at least seven basic emotions: sadness, fear, anger, disgust, contempt, happiness, and surprise. There are, however, huge differences across cultures in both the context and intensity of emotional displays - the so called display rules. In many Asian cultures, for example, children are taught to control emotional responses - especially negative ones- while many American children are encouraged to express their feelings more openly. Regardless of culture, however, emotions usually show themselves, to some degree, in people's behavior. From their first days of life, babies produce facial expressions that communicate their feelings.
The ability to read facial expressions develops early, too. Very young children pay close attention to facial expressions, and by age five, they nearly equal adults in their skill at reading emotions on people's faces. This evidence all points to a biological underpinning for our abilities to express and interpret a basic set of human emotions. Moreover, as Charles Darwin pointed out over a century ago, some emotional expressions seem to appear across species boundaries. Cross - cultural psychologists tell us that certain emotional responses carry different meanings in different cultures. For example, what emotion do you suppose might be conveyed by sticking out your tongue? For Americans, this might indicate disgust, while in China it can signify surprise. Likewise, a grin on an American face may indicate joy, while on a Japanese face it may just as easily mean embarrassment. Clearly, culture influences emotional expressions.

Unlike American children, Asian children are encouraged to ........

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.

Nearly 200 of the 1500 native plant species in Hawaii are at risk of going extinct in the near future because they have been (1) ____ to such low numbers. Approximately 90 percent of Hawaii's plants are found nowhere else in the world but they are threatened by alien invasive species such as feral goats, pigs, rodents and non- (2) ____ plants.

The Hawaii Rare Plant Restoration Group is striving to prevent the extinction of the 182 rare Hawaiian plants with fewer than 50 individuals remaining in the wild. Since 1990, (3) ____ a result of their ‘Plant Extinction Prevention Program’, sixteen species have been brought into cultivation and three species have been reintroduced. Invasive weeds have been removed in key areas and fencing put up in order to (4) ____ plants in the wild.

In the future the Hawaii Rare Plant Restoration Program aims (5) ____ collecting genetic material from the remaining plants in the wild for storage as a safety net for the future. They also aim to manage wild populations and where possible reintroduce species into reserves.

(3) ________

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

"Until recently, the ‘Science of the future’ was supposed to be electronics and artificial intelligence. Today it seems more and more likely that the next breakthrough in technology will be brought about through a combination of those
two Sciences with organic chemistry and genetic engineering. This Science is the combination of biotechnology.
 Organic chemistry enables us to produce marvelous synthetic materials. However, it is still difficult to manufacture anything that has the capacity of wool to conserve heat and also to absorb moisture. Nothing that we have been able to produce so far comes anywhere near the combination of strength, lightness, and flexibility that we find in the bodies of ordinary insects.
 Nevertheless, scientists in the laboratory have already succeeded in ‘growing’ a material that has many of the characteristics of human skin. The next step may well be ‘biotech heart and eyes’ which can replace diseased organs in human beings. This will not be rejected by the body, as in the case with organs from humans.
 The application of biotechnology to energy production seems even more promising. In 1996, the famous science-fiction writer Arthur c. Clarke, many of whose previous predictions have come true, said that we may soon be able to develop remarkably cheap and renewable sources of energy. Some of these power sources will be biological. Clarke and others have warned us repeatedly that sooner or later we will have to give up our dependence on non-renewable power sources. Coal, oil and gas are indeed convenient. However, using them also means creating dangerously high levels of pollution. It will be impossible to meet the growing demand for energy without increasing that pollution to catastrophic levels unless we develop power sources that are both cheaper and cleaner."

4.  In 1996, Arthur c. Clarke predicted………..

When we were in England last year, I went fishing with my friend, Peter. Early in the morning we were sitting quietly by the side of the lake when we had an unpleasant surprise. We saw a duck come along with three ducklings padding cheerfully behind her. As we watched them,  there was a sudden swirl in the water. We caught a glimpse of the vicious jaws of a pike – a fish  which is rather like a freshwater shark – and one of the ducklings was dragged below the surface. 
This incident made Peter furious. He vowed to catch the pike. On three successive  mornings we returned to the vicinity and used several different kinds of bait. On the third day Peter was lucky. Using an artificial frog as bait, he managed to hook the monster. There was a  desperate fight but Peter was determined to capture the pike and succeeded. When he had got it  ashore and killed it, he wieghed the fish and found that it scaled nearly thirty pounds – a record for that district. 

Why do you think Peter was sitting quietly by the lake? 

Read the following passage and choose the correct answer for each of the blanks.

Revising for exams is not as easy as it looks. You will need to work out which routine suits you best, and then stick to it. Some people like studying at night when it’s quiet, whereas others find the early morning is a good time to get things done. You might enjoy (1)…….. to music while you revise, but this can be (2)……... Can you really concentrate (3)……….. two things at once? So think (4)……… you turn your radio on. Your (5)…….. is also important while you are revising. This may be a more than usually (6)………. period of your life, when you should take extra care to eat properly. No missed meals, or junk food, or (7)…….cups of coffee! Get plenty of exercise as well. If you have got fed up with (8)……. you’re doing, or find it hard to concentrate, go for a walk to clear your head. (9)……. exercise will help to keep your body fit and your brain working (10)………… Finally, you also need to take time off. Go out occasionally, see your friends, and make time to relax. Then you will return to your studies fresh and full of enthusiasm.

(1) ______

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.
The elementary means of communicating with other people is (41).......... messages by voice. This fact is widely acknowledged and we recognize the voice as a feature characterizing the identity of a person. The array of voices is immeasurable as no two are exactly similar. They can be nasal, resonant or shrill produced in accordance with the individual physical (42) .........   of the throat
One possible implementation of the art of voice recognition is voice profiling used by police analysts as a method of (43).......  court evidence in  trials.  Every year thousands of  audiotapes with recorded interviews or casual utterances are put to the purpose to help identity the probable culprit. Specialists dealing with the voice investigation claim that people can give themselves away by their accents, infections or other voice attributes like pitch, intensity and loudness. A recorded sample is usually (44)....... into electric impulses and later transformed    into a pictorial recording which is processed by a computer program. Very frequently voice analysts have a stab at deciphering the relevant information which may be mingled with background noise or other interfering sounds until they attain the desired results.
Thankfully, these efforts help the police detect individuals who threaten their victim by phone or inform about bomb planting or those who make offensive calls (45).....  the peace  of decent citizens.
(42)...........................
 

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.
The warming ot the Earth is caused by exhaust gas from automobile engines, factories and power (23)....... Carbon dioxide goes up into the atmosphere, and it form a kind of screen that keeps or allows the sunshine in but stop the Earth heat (24)...... getting out. It works like a greenhouse, that’s why we call (25)..... the Green House effect.
Because ot this effect, the Earth is getting warmer alt the time. This (26)...... in temperature will cause big changes to the world’s climate. The sea level will increase as the ice (27)...... the poles will melt.
(26)............................

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.
Do you ever wish you were more optimistic, some one who always (36)....... to be successful? Having some one around who always fears the worst isn’t really a lot of (37)........we all know someone who sees a single cloud on a sunny day and says: “It looks like rain.” But if you catch yourself thinking such things, it’s important to do something (38) ..........it. You can change your view of life, (39)....... to psychologists, it only takes a little effort, and you’ll find life more rewarding as a (40).......... Optimism, they say, is partly about self-respect and confidence, but it’s also a more positive way of looking at life and all it has to offer . Optimists are more (41).... to start new projects and generally more prepared to take risks.
Upbringing  is obviously very important in forming your (42).... to the world. Some people are brought up to (43)..... too much on others and grow up forever blaming other people when anything goes wrong. Most optimists, on the (44).......... hand, have been brought up not to regard failure as the end of the world-they just (45)......... with their lives
(39)...........................

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.
One of the most interesting authors of the twentieth century, J.R.R Tolkien, achieved fame through his highly inventive trilogy. The Lord of the Rings. Born in 1892, Tolkien received his education from Oxford and then served in World War I. After the war, he became a professor of Anglo -Saxon and English language and literature at Oxford University.
Although published in 1965, the three books that comprise the Lord of the Rings were written in intervals from 1936 to 1949. This was mainly due to Tolkien's responsibilities as a professor and the outbreak of World War II. By the late 1960s, this fascinating trilogy had become a sociological phenomenon as young people intently studied the mythology and legends created by Tolkien.
The trilogy is remarkable not only for its highly developed account of historical fiction but also its success as a modern heroic epic. The main plot describes the struggle between good and evil kingdom as they try to acquire a magic ring that has the power to rule the world. The novels, which are set in a time called Middle Earth, describe a detailed fantasy world. Established before humans populated the Earth, Middle Earth was inhabited by good and evil creatures such as hobbits, elves, monsters, wizards, and some humans. The characters and the setting of Middle Earth were modeled after mythological stories from Greece and Northern Europe.
Although readers have scrutinized the texts for inner meaning and have tried to connect the trilogy with Tolkien's real life experiences in England during World War II, he denied the connection. He claims that the story began in his years as an undergraduate student and grew out of his desire to create mythology and legends about elves and their language.
Tolkien was a masterful fantasy novelist who used his extensive knowledge of folklore to create a body of work that is still read and enjoyed throughout the world today.

What does the word "trilogy" in the first paragraph mean?

Choose the best answer: 
Family types vary in different countries and among different cultures. In Western, industrialized societies, the nuclear family ranks as the most common family type. It consists of a father, a mother and their children. But nuclear families exist alongside many other types of family units. In the single-parent family, for example, a mother or a father heads the family alone. A blended family is formed when a divorced or widowed parent remarries. As divorce rates have risen, the number of single-parent and blended families has increased.
In many parts of the world, parents and children live together with other family members under the same roof. These complex families usually contain several generations of family members, including grandparents, parents and children. They may also include brothers or sisters and their families, uncles, aunts and cousins. Even when relatives do not live together, they still consider themselves members of the same extended family includes grandparents, uncles, aunts and cousins.

28. In the single-parent family, ________.