Humans have struggled against weeds since the beginnings of agriculture. Marring our gardens is one of the milder effects of weeds - any plants that thrive where they are unwanted. They clog waterways, destroy wildlife habitats, and impede farming. Their spread eliminates grazing areas and accounts for one-third of all crop loss. They compete for sunlight, nutrients, and water with useful plants.

The global need for weed control had been answered mainly by the chemical industry. Its herbicides are effective and sometimes necessary, but some pose serious problems, particularly if misused. Toxic compounds threaten animal and public health when they accumulate in food plants, groundwater, and drinking water. They also harm workers who apply them.

In recent years, the chemical industry has introduced several herbicides that are more ecologically sound. Yet new chemicals alone cannot solve the world’s weed problems. Hence, scientists are exploring the innate weed-killing powers of living organisms, primarily insects and microorganisms.

The biological agents now in use are environmentally benign and are harmless to humans. They can be chosen for their ability to attack selected targets and leave crops and other plants untouched. In contrast, some of the most effective chemicals kill virtually all the plants they come in contact with, sparing only those that are naturally resistant or have been genetically modified for resistance. Furthermore, a number of biological agents can be administered only once, after which no added applications are needed. Chemicals typically must be used several times per growing season.

With what topic does this passage primarily deal?

    

Read the text below and decide which answer (A,B,C, or D) best fits each space.
Tattooing is an old art. In ancient Greece, people who had tattoos were regarded  asmembers of the (16)____classes. On the other hand, tattooing was  (17)_____in Europe by the early Christians, who thought that it was a sinful  thing to(18) .It was not until the late 18th century, when Captain Cook  saw South Sea Islander decorating their bodies with tattoos that attitudes began  to change. Sailors came back from these islands with pictures of Christ on their  backs and from then on, tattooing (19)_____in popularity. A survey by the  French army in 1881 (20)_____that among the 387 men (21)_______ there were  1,333 designs. Nowadays, not everybody finds tattoos acceptable. Some people  thing that getting one is silly because tattoos are more or less permanent. There  is also some (22)_____about (23)_____ a blood disease from unsterilized needles. Even for those who do want a tattoo, the (24)_____of getting one is not  painless, but the final result, in their eyes, is (25)______the pain. 

16.......................

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.

   Mickey Mantle was one of the greatest baseball players of all time. He played for the New York Yankees in their years of glory. From the time Mantle began to play professionally in 1951 to his last year in 1968, baseball was the most popular game in the United States. For many people, Mantle symbolized the hope, prosperity, and confidence of America at that time.

   Mantle was a fast and powerful player, a “switch-hitter” who could bat both right-handed and lefthanded. He won game after game, one World Series championship after another, for his team. He was a wonderful athlete, but this alone cannot explain America’s fascination with him.

   Perhaps it was because he was a handsome, red-haired country boy, the son of a poor miner from Oklahoma. His career, from the lead mines of the West to the heights of success and fame, was a fairy-tale version of the American dream. Or perhaps it was because America always loves a “natural”: a person who wins without seeming to try, whose talent appears to come from an inner grace. That was Mickey Mantle.

   But like many celebrities, Mickey Mantle had a private life that was full of problems. He played without complaint despite constant pain from injuries. He lived to fulfill his father’s dreams and drank to forget his father’s early death.

   It was a terrible addiction that finally destroyed his body. It gave him cirrhosis of the liver and accelerated the advance of liver cancer. Even when Mickey Mantle had turned away from his old life and warned young people not to follow his example, the destructive process could not be stopped. Despite a liver transplant operation that had all those who loved and admired him hoping for a recovery, Mickey Mantle died of cancer at the age of 63.

The word “accelerated” in paragraph 5 is closest in meaning to ______.

Read the text below and decide which answer (A,B,C, or D) best fits each space.
Postsecondary institutions and private schools are corporations under U.S. law.  They are approved to operate as non-profit, for-profit, or public corporations (1)  _______ education and training. Increasingly, state authorities are requiring  approved educational providers to apply (2) _______ and receive accreditation  as a condition of final and continued approval. 
As corporate entities, U.S. institutions are internally self-governing and are (3)  _______ to make property, facilities, equipment, and utilities transactions; make  their own personnel decisions; decide whom to admit to study and to graduate;  (4) _______ their own funds from outside sources; enter into contracts and  compete for grants; and do most of the other things that corporations do.  Institutions compete (5) _______ one another for students, research funding,  faculty, and other benefits. Public institutions may compete within the same  state or territory for budget appropriations. It is the corporate nature of  institutions and the competition within the system that (6) _______ Americans  to refer to the concept of the educational or academic marketplace - an important distinctive element of the way U.S. education is organized. 
Some institutions are governed (7) _______ under multi-campus arrangements.  These include most local public schools (governed by school districts) and many  state community college and university systems. Whether single- or multi campus, institutional corporations (8) _______ by boards of citizens, both  alumni and non- alumni, who are ultimately responsible for all operations. They  appoint senior (9) _______, such as principals, headmasters, presidents, and  deans; and approve the actions taken (10) ______ their name. 

1........................

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 day in 1924, five men who were camping in the Cascade Mountains of Washington saw a group of huge apelike creatures coming out of the woods. They hurried back to their cabin and locked themselves inside. While they were in, the creatures attacked them by throwing rocks against the walls of the cabin.

   After several hours, these strange hairy giants went back into the woods. After this incident the men returned to the town and told the people of their adventure. However, only a few people accepted their story. These were the people who remembered hearing tales about footprints of an animal that walked like a human being.

   The five men, however, were not the first people to have seen these creatures called Bigfoot. Long before their experience, local Native Americans were certain that a race of apelike animals had been living in the neighboring mountain for centuries. They called these creatures Sasquatch.

   In 1958, workmen, who were building a road through the jungles of Northern California often found huge footprints in the earth around their camp.

   Then in 1967, Roger Patterson, a man who was interested in finding Bigfoot went into the Northern California jungles with a friend. While riding, they were suddenly thrown off from their horses. Patterson saw a tall apelike animal standing not far away. He managed to shoot seven rolls of film of the hairy creature before the animal disappeared in the hushes. when Patterson's film was shown to the public, not many people believed his story.

   In another incident, Richard Brown, a music teacher and also an experienced hunter spotted a similar creature. He saw the animal clearly through the telescopic lens of his rifle. He said the creature looked more like a human than an animal.

   Later many other people also found deep footprints in the same area. In spite of regular reports of sightings and footprints, most experts still do not believe that Bigfoot really exists.

The BEST title for this passage would be

Read the following passage and mark A, B, C, or D to indicate the correct answer to each of the blanks from 6 to 10.
Some years ago, my daughter was studying English at a university on the south coast. One evening, she phoned to (6)_________ me that what she really wanted to do was a travel round the world, (7)_________ she was looking into the possibility of working in another country. She had seen several advertisements in the paper for student teachers of English abroad, and she was interested in one in Italy, (8)_________ she was desperate to visit.
She decided that this would be a good way to achieve her ambition, so she was writing to apply for the job. The reply (9)_________ a long time to arrive, but eventually she received a letter asking if she would go for an interview in London the following week. She was so excited that she immediately got in touch with the school owner and agree to attend the interview . She was determined that nothing would prevent her (10)_________ doing what she had set out to do.
(7)...................

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.

I’m standing on a sidewalk in the early morning. The great avenues of Paris are silent, and the shops are closed. Suddenly, a couple appeared from a hole in the sidewalk. Mud covers their boots. They place the iron cover over the hole and run down the street, smiling. The couple had been exploring the tunnels beneath the city.

When Romans occupied Paris, they cut down stone from deep within the earth to build their city. Later, the French used more stone to construct the Notre Dame Cathedral. This left huge underground tunnels upon which part of the city now. Once used for growing mushrooms and as a hiding place, today they are mostly forgotten, except by "cataphiles" - those who love to go down into the tunnels below Paris, even though it is actually not permitted.

In the 70s and 80s, it is easier to enter the tunnels because there were many more open entrances through forgotten doorways and into catacombs - rooms filled with bones. The bones had been moved into the tunnels to solve the problem crowded cemeteries. By the end of the 1980s, most of the entrances were shut and police regularly walked the tunnels. However, there are still cataphiles, like the couple I saw that morning, and for those who dare, the underground is an exciting place to meet, party, perform for each other or create art.

My own experience began beneath the old Paris opera house, where sewer workers showed me a 55-meter-long underground pond, a pond that actually had fish in it! Later, at France's national bank, officials guided me below to an amazing room filled with 2,600 tons of gold.

As cataphiles are the best guides, I then asked one of the cataphiles to give me a tour. Descending into the underground through a secret entrance beneath a bridge, we walked for hours through catacombs, and galleries of huge, bright paintings. The cataphile told me "Many people come down here to party, some to paint. Some people to destroy or to create or to explore. We do what we want, We don't have rules..."

(Adapted from Reading Explorer 2, Paul Macintyre&David Bohlke, 2015)

What is the reading mainly about?

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 following questions.

Let children learn to judge their own work. A child learning to talk does not learn by being corrected all the time. If corrected too much, he will stop talking. He notices a thousand times a day the difference between the language he uses and the language those around him use. Bit by bit, he makes the necessary changes to make his language like other people's. In the same way, children learn all the other things they learn to do without being taught - to talk, run, climb, whistle, ride a bicycle - compare their own performances with those of more skilled people, and slowly make the needed changes. But in school we never give a child a chance to find out his mistakes for himself, let alone correct them. We do it all for him. We act as if we thought that he would never notice a mistake unless it was pointed out to him, or correct it unless he was made to. Soon he becomes dependent on the teacher. Let him do it himself. Let him work out, with the help of other children if he wants it, what this word says, what the answer is to that problem, whether this is a good way of saying or doing this or not.

If it is a matter of right answers, as it may be in mathematics or science, give him the answer book. Let him correct his own papers. Why should we teachers waste time on such routine work? Our job should be to help the child when he tells us that he can't find the way to get the right answer. Let's end all this nonsense of grades, exams, and marks. Let us throw them all out, and let the children learn what all educated persons must someday learn, how to measure their own understanding, how to know what they know or do not know.

Let them get on with this job in the way that seems most sensible to them, with our help as school teachers if they ask for it. The idea that there is a body of knowledge to be learnt at school and used for the rest of one's life is nonsense in a world as complicated and rapidly changing as ours. Anxious parents and teachers say, “But suppose they fail to learn something essential, something they will need to get on in the world?" Don't worry! If it is essential, they will go out into the world and learn it.

According to paragraph 1, what basic skills do children learn to do without being taught?

Read the text below and decide which answer (A,B,C, or D) best fits each space.
Tattooing is an old art. In ancient Greece, people who had tattoos were regarded  asmembers of the (16)____classes. On the other hand, tattooing was  (17)_____in Europe by the early Christians, who thought that it was a sinful  thing to(18) .It was not until the late 18th century, when Captain Cook  saw South Sea Islander decorating their bodies with tattoos that attitudes began  to change. Sailors came back from these islands with pictures of Christ on their  backs and from then on, tattooing (19)_____in popularity. A survey by the  French army in 1881 (20)_____that among the 387 men (21)_______ there were  1,333 designs. Nowadays, not everybody finds tattoos acceptable. Some people  thing that getting one is silly because tattoos are more or less permanent. There  is also some (22)_____about (23)_____ a blood disease from unsterilized needles. Even for those who do want a tattoo, the (24)_____of getting one is not  painless, but the final result, in their eyes, is (25)______the pain. 

18.....................

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.

The concept of traffic-free shopping areas goes back a long time. During the Middle Ages, traffic-tree shopping areas were built in Middle Eastern countries to allow people to shop in comfort and, more importantly, safety. As far back as 2000 years ago, road traffic was banned from central Rome during the day to allow for the free movement of pedestrians.

The modern, traffic-free shopping street was born in Europe in the 1960s, when both city population and car ownership increased rapidly. Dirty exhaust from cars and the risks involved in crossing the road were beginning to make shopping an unpleasant and dangerous experience. Many believed the time was right experimenting with car-free streets, and shopping areas seemed the best place to start.

At first, there was resistance from shopkeepers. They argued that people would avoid streets if they unable to get to them in their cars. When the first streets in Europe were closed to traffic, there were noisy demonstrations, as many shopkeepers predicted they would lose customers.

With the arrival of the traffic-free shopping street, many shops, especially those selling things clothes, food and smaller luxury items, prospered. Unfortunately, shops selling furniture and larger electrical appliances actually saw their sales drop. Many of these were forced to move elsewhere, away from centre.

(Adapted from Complete IELTS)

Which of the following can be the best title for the passage?

Many of the most damaging and life-threaling types of weather-torrential rains, severe thunderstorms, and tornadoes-begin quickly, strike suddenly, and dissipate rapidly, devastating small regions while leaving neighboring areas untouched. One such event, a tornado, struck the northeastern section of Edmonton, Alberta, in July 1987. Total damages from the tornado exceeded $250 million, the highest ever for any Canadian storm. Conventional computer models of the atmosphere have limited value in predicting short-live local storms like the Edmonton tornado, because the available weather data are generally not detailed enough to allow computers to discern the subtle atmospheric changes that precede these storms. In most nations, for example, weather balloon observations are taken just once every twelve hours at locations typically separated by hundreds of miles. With such limited data, conventional forecasting models do a much better job predicting general weather conditions over large regions than they do forecasting specific local events.
Until recently, the observation-intensive approach needed for accurate, very short range forecasts, or “Nowcasts”, was not feasible. The cost of equipping and operating many thousands of conventional weather stations was prohibitively high, and the difficulties involved in rapidly collecting and processing the raw weather data from such a network were insurmountable. Fortunately, scientific and technological advances have overcome most of these problems. Radar systems, automated weather instruments, and satellites are all capable of making detailed, nearly continuous observation over large regions at a relatively low cost. Communications satellites can transmit data around the world cheaply and instantaneously, and modern computers can quickly compile and analyzing this large volume of weather information. Meteorologists and computer scientists now work together to design computer programs and video equipment capable of transforming raw weather data into words, symbols, and vivid graphic displays that forecasters can interpret easily and quickly. As meteorologists have begun using these new technologies in weather forecasting offices, Nowcasting is becoming a reality.

Which of the following is NOT mentioned as an advance in short-range weather forecasting?

Read the following passage and mark A, B, C, or D to indicate the correct answer to each  of the blanks.

Modern industry pollutes, and it also seem to cause significant changes to the climate. What is needed is an industry that (41)_________ the benefits without the costs. And the glimmerings of such an industry can now be (42)_________ .
That industry is based on biotechnology. At the moment, biotech‟s main uses are in medicine and agriculture.  However,  its  biggest  long  term impact maybe industrial.  Biotechnology will  (43)_________ demand for oil by taking the cheapest raw materials imaginable, carbon dioxide and water, and using them to make fuel and plastics.
Plastics and fuels made in this way would have several advantages. They can be called “renewable”, (44)_________ nothing is depleted to make them. They would be part of the natural carbon cycle, borrowing    that element from the atmosphere for a few months, and returning it when they were burned or (45)_________ . That means they could not possibly contribute to global warming. They would also be environmentally friendly in other ways.
All in all, the future could be green in ways that traditional environmentalists had not expected.
(42)........................

Read the passage below and choose one correct answer for each question.

Books which give instructions on how to do things are very popular in the United States today. Thousands of these How-to books are useful: in fact, there are about four thousand books with titles that begin with the words 'How-to". One book may tell you how to earn more money, another may tell you how to save or spend it and another may explain how to give your money away. Many How-to books give advice on careers. They tell you how to choose a career and how to succeed in it. If you fail, however, you can buy the book “How to Turn Failure into Success”. If you would like to become very rich, you can buy the book “How to Make a Millionaire”. If you never make any money at all. you may need abook called “How to Live on Nothing”. One of the most popular types of books is one that helps you with personal problems. If you want to have a better love of life, you can read “How to Succeed in Love Every Minute of Your Life”. If you are tired of books on happiness,  you may prefer books which give step-by-step instructions on how to redecorate or enlarge a house. Why have How-to books become so popular? Probably because life has become so complex. Today people have far more time to use, more choices to make, and more problems to solve. How-to books help people deal with modern life.

The passage tells us that How-to books sell well on how________

Read the passage below and choose one correct answer for each question.

Books which give instructions on how to do things are very popular in the United States today. Thousands of these How-to books are useful: in fact, there are about four thousand books with titles that begin with the words 'How-to". One book may tell you how to earn more money, another may tell you how to save or spend it and another may explain how to give your money away. Many How-to books give advice on careers. They tell you how to choose a career and how to succeed in it. If you fail, however, you can buy the book “How to Turn Failure into Success”. If you would like to become very rich, you can buy the book “How to Make a Millionaire”. If you never make any money at all. you may need abook called “How to Live on Nothing”. One of the most popular types of books is one that helps you with personal problems. If you want to have a better love of life, you can read “How to Succeed in Love Every Minute of Your Life”. If you are tired of books on happiness,  you may prefer books which give step-by-step instructions on how to redecorate or enlarge a house. Why have How-to books become so popular? Probably because life has become so complex. Today people have far more time to use, more choices to make, and more problems to solve. How-to books help people deal with modern life.

If you often read “How-to books”, you________. 

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.

The concept of traffic-free shopping areas goes back a long time. During the Middle Ages, traffic-tree shopping areas were built in Middle Eastern countries to allow people to shop in comfort and, more importantly, safety. As far back as 2000 years ago, road traffic was banned from central Rome during the day to allow for the free movement of pedestrians.

The modern, traffic-free shopping street was born in Europe in the 1960s, when both city population and car ownership increased rapidly. Dirty exhaust from cars and the risks involved in crossing the road were beginning to make shopping an unpleasant and dangerous experience. Many believed the time was right experimenting with car-free streets, and shopping areas seemed the best place to start.

At first, there was resistance from shopkeepers. They argued that people would avoid streets if they unable to get to them in their cars. When the first streets in Europe were closed to traffic, there were noisy demonstrations, as many shopkeepers predicted they would lose customers.

With the arrival of the traffic-free shopping street, many shops, especially those selling things clothes, food and smaller luxury items, prospered. Unfortunately, shops selling furniture and larger electrical appliances actually saw their sales drop. Many of these were forced to move elsewhere, away from centre.

(Adapted from Complete IELTS)

The word prospered in paragraph 4 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 for each of the numbered blanks.
An ecosystem is a community of animals, plants and microbes that sustain themselves in the same area or environment by performing the activities of living, feeding, reproducing and interacting. Like many of Africas large mammals, giraffes have (21)________ in numbers and in range over the last century.   At one time, herds of over 100 animals were common in savanna regions across the continent, however, today concentrations like these exist only in East Africa particularly Tanzania Serengeti National Park. The decline of giraffe populations has largely been due to hunting. In Africa, the giraffe is a traditional source of hide and hair and also of tough  but (22) ________ meat. The hunting of giraffes has not yet  had a catastrophic effect, (23)________ on some of Africas big-game animals, but it is a cause for concern. The natural habitat of the giraffe is also being impacted more and more by human activities, (24)________ the animals range. The giraffe is currently a protected species throughout most of its range and is classed as conservation-dependent by the World Conservation Union. The giraffe’s prospects for survival are good for (25)________ living in national parks and game reserves, but for animals living outside these   areas the future is less secure.
(24).................

Read the following passage and mark the letter A, B, C, or D to indicate the answer to each of the question. 
The world’s oldest post office, which has been operating in Sanquhar, Scotland, for more than 300 years, faces an uncertain future. Current owner and stamp collector, Manzoor Alam, and his wife, Nazra, have been forced to put the business and its accompanying cottage on the market due to ill health.
The Alams are “heartbroken” to leave the post office, and are concerned that if a buyer cannot be found its rich history could be lost. “It was my husband who was always the one most interested in stamps and the postal service but over the last few years of working here it has grown on me too,” said Mrs Alam. The couple are the post office’s 16th postmasters, and if they become the last, the title will fall to a Stockholm branch, which opened in 1720.
Dumfries and Galloway councillor, Andrew Wood, said lots of rural areas were struggling to keep their post offices open. He said it would be a “sad day” if the business folded. “I was wondering if the community could arrange a buyout but it shouldn’t come down to that,” he said. “We’re a wealthy country and should be able to have them in good-sized towns.”
The property is on the market for £275,000, and includes a three-bed cottage with two bathrooms, a large living room, and garden with outbuildings. Agent Humberstones suggests the outbuilding could be a holiday let, tea room or postal museum, as Mr Alam had planned. “My ambition is to promote the rich heritage of the past by establishing a postal museum — the only one in Scotland — and combining it with a modern business, securing this wonderful post office for future generations,’” he had said when he took on the business.

The word “accompanying” in paragraph 1 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. 
     The next time you are watching a film and you see one of the characters jumping out of a plane, falling off a horse, or being blown through a window - spare a (23) ______ for the stunt artist. Lots of people think that stunt artists are just "extras" who play small, unimportant parts in films and television. Nothing could be further from the truth. 
     A stunt artist must combine the skills of an actor with the physical abilities of a first- (24) _____________ athlete. He or she must be extremely fit, and highly trained in a number of activities like scuba-diving, horse riding, martial arts or parachuting. 
It is not easy to get started in a career as a stunt performer. Film and television producers look for experience and proven ability, as it is unlikely that they will take on a complete newcomer. However, because of the (25) ____________ of their profession, stunt artists tend to retire early. This means that new performers must be employed, or there will be no one to take (26) ______________ when the present generation quits. 
      Even when a stunt artist becomes well-known, the work is not regular. It may sometimes be necessary to travel to the other side of the world for a job which involves long hours and great physical danger. It is not a glamorous occupation either. Unlike the famous actors for (27) ____________ they sometimes risk their lives, few stunt artists are recognized in the street by adoring fans. 

 The next time you are watching a film and you see one of the characters jumping out of a plane, falling off a horse, or being blown through a window - spare a (23) ______ for the stunt artist

In “Cerealizing America”, Scott Bruce and Bill Crawford remark that the cereal  industry uses 816 million pounds of sugar per year. Americans buy 2.7 billion  packages of breakfast cereal each year. If (1) _______ end to end, the empty  cereal boxes from one year's consumption would (2) _______ to the moon and back. One point three (1.3) million advertisements for cereal are broadcast on  American television every year at a(n) (3) _______ of $762 million for airtime.  Only automobile manufacturers spend more money on television advertising  than the makers of breakfast cereal. (4) _______ of the boxed cereals found in  supermarkets contain large amounts of sugar and some contain more than 50%  sugar. Cereal manufacturers are very clever in their marketing, making many  cereals appear much healthier than they really are by “fortifying” them with vitamins and minerals. Oh, (5) ______ – you now have vitamin-fortified sugar! Before you eat any cereal, read the ingredient list and see how (6) _______  sugar appears on the ingredient list. Then check the “Nutrition facts” panel. 
There are actually only a small handful of national commercially-branded cereals  that are made (7) _______ whole grains and are sugar-free. If you shop at a health  food store instead of your local supermarket, you (8) _______ to find a healthy,  whole grain, sugar-free (or very low sugar) cereal. But (9) _______! Some of the  health food store boxed cereals are sweetened with fruit juice or fructose.  Although this may be an improvement (10) _______ refined white sugar, this can  really skyrocket the calories. 

2....................

Read the following pasage and decide which answer (A, B, C or D) best fits each space from 1 to 5.
With job vacancies available all year round offering high salaries, Vietnam has been ranked the second best place in the world to teach English by TEFL Exchange, a community for teachers of English           (1)_________ a foreign language.
The site (2)_________ that a foreign English teacher can earn between $1,200-2,200 a month in Vietnam, where the average annual income in 2016 was just $2,200. They can (3)_________ a job any time of year and the best places to do so are the country’s three largest cities: Hanoi, Ho Chi Minh City and Da Nang.
Candidates only need to hold a bachelor’s (4)_________ and a TEFL  (Teaching  English as a Foreign Language) certificate.
English is an obligatory subject from sixth grade across Vietnam, but in large cities, many primary schools demand high (5)_________ . Foreign language centers have been thriving here, with students as young as three years old.
(4)...................

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 day in 1924, five men who were camping in the Cascade Mountains of Washington saw a group of huge apelike creatures coming out of the woods. They hurried back to their cabin and locked themselves inside. While they were in, the creatures attacked them by throwing rocks against the walls of the cabin.

   After several hours, these strange hairy giants went back into the woods. After this incident the men returned to the town and told the people of their adventure. However, only a few people accepted their story. These were the people who remembered hearing tales about footprints of an animal that walked like a human being.

   The five men, however, were not the first people to have seen these creatures called Bigfoot. Long before their experience, local Native Americans were certain that a race of apelike animals had been living in the neighboring mountain for centuries. They called these creatures Sasquatch.

   In 1958, workmen, who were building a road through the jungles of Northern California often found huge footprints in the earth around their camp.

   Then in 1967, Roger Patterson, a man who was interested in finding Bigfoot went into the Northern California jungles with a friend. While riding, they were suddenly thrown off from their horses. Patterson saw a tall apelike animal standing not far away. He managed to shoot seven rolls of film of the hairy creature before the animal disappeared in the hushes. when Patterson's film was shown to the public, not many people believed his story.

   In another incident, Richard Brown, a music teacher and also an experienced hunter spotted a similar creature. He saw the animal clearly through the telescopic lens of his rifle. He said the creature looked more like a human than an animal.

   Later many other people also found deep footprints in the same area. In spite of regular reports of sightings and footprints, most experts still do not believe that Bigfoot really exists.

What did the five campers do when they saw a group of apelike creatures?