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Typically, Pacific trade winds blow from east to west, transporting warm surface waters westward, east of Indonesia and northeast of Australia. Thus, the water maintains a cold temperature for much of the year. This is achieved by an upwelling of cold deep ocean-water, which benefits fisheries in the Pacific Ocean lying near the equator. However, these trade winds sometimes lose or gain strength in the Northern Hemisphere. This leads to an effect known as the Southern Oscillation which refers to the two recurring weather patterns of El Niño and La Niña.  El Niño, meaning the "boy," is the phenomenon that results in the temperature of the sea surface off the coast of Peru increasing. This condition typically lasts for at least six months. Thus, there is a reduction in dissolved oxygen in the ocean so marine life declines devastating fisheries. It also fuels major differences in air pressure near the Pacific Ocean, which in turn leads to more severe weather events including droughts, increased precipitation, flooding, and even cyclonic storms like hurricanes. Usually, the eastern Pacific region has an upswing in heavy rains to cause flooding, and in contrast, Australia and Indonesia have droughts, often with accompanying forest fires. These two opposing weather events hurt agriculture. For instance, the 1982 – 1983 El Niño, recognized as the worst weather event of the century, hit hard in the U.S. by dropping huge amounts of rainfall on the southern California coast, which resulted in millions of dollars of damage while necessitating the evacuation of 10,000 people.    El Niños counterpart, La Niña, meaning "the girl," contrastingly forms when Pacific trade winds grow more powerful than usual. It is the result of the cooler-than-average temperatures of South American equatorial surface waters which cause global cooling. La Niña's duration usually lasts for 9 to 12 months and although forming in the Pacific region, it can wreak havoc across large swaths of the world. During the winter months, the western Pacific areas including Australia, Malaysia, and the Philippines have much greater rainfall. Conversely, unusually dry conditions settle in over North America's Gulf Coast and large sections of South and Central America as well. Additionally, in the Canadian and American West, there is a cooling effect.  By studying the patterns of the El Niño and La Niña cycles, meteorologists have come to better understand their impacts on global weather phenomena. They are thus better able to make predictions especially in terms of not only the strength of each stage, but also when either will fizzle out or begin again, allowing governments to better prepare for floods and droughts which come with each cycle and to prevent billions of dollars in losses and damage. Thereby, the areas under their influence need accurate forecasts to reduce the wide-reaching effects these phenomena have across many facets of both the environment and the economy.   
5. It is NOT mentioned in paragraph 2 that ____.

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Forget global terrorism - for most of the world's population, ticking time bombs like earthquakes, supervolcanoes and hurricanes pose a far greater threat. Natural disaster expert Bill McGuire reveals a few of the top catastrophes waiting to happen. With NASA's eminent climate scientist, Jim Hansen, concerned that collapsing polar ice sheets could result in sea levels rising 1-2m this century and several more in the next, prospects for the Earth's coastal zones are bleak. A 1m rise would threaten one third of the world's agricultural land, while a 4m rise would maroon Miami 60km offshore. Rising sea levels is not the only threat to coastal regions. The Cumbre Vieja volcano on the Canary Island of La Palma is slowly creeping seawards. During a future eruption, this gigantic landslide will plunge into the ocean, pushing up a bulge of water close to a kilometre high, spawning a mega-tsunami capable of devastating all the coastal areas surrounding the North Atlantic. Coastal regions also face the menace of desertification. By 2030, over half a billion people living around the shores of the Mediterranean will be viewing the encroaching desert with increasing panic. An area bigger than the UK, and home to 16 million people, is threatened - by the end of the century- with transformation from a green and pleasant land to a baking wilderness of sand and rock. However, these disasters seem pale in comparison to the mega-catastrophes waiting to happen like supervolcanoes, for instance. Every 50 millennia or so, a colossal volcanic blast expels sufficient ash and gas to cover a continent and block the Sun's rays for years on end, heralding a bitter volcanic winter. At Yellowstone in Wyoming, US, two such super-eruptions have shattered the crust in the last 2.1 million years and the volcano there remains restless. An asteroid attack is another threat which would have devastating consequences. A total of 713 asteroids with diameters of 1km or more, and the potential to clobber the Earth at some future date, have been identified. A 2km asteroid would load the atmosphere with dust and trigger a sustained global freeze. Harvests would fail and billions would die. Fortunately, such collisions only happen every couple of million years.
7. Which of the following can be inferred from the passage?

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There are many types of family systems around the world. In North America and northern Europe, the nuclear family (with two generations - a father, a mother and one or more children) is often seen as the most typical. In contrast, in most other parts of the world, extended families, which include other family members such as grandparents, aunts, uncles and cousins, are seen as the norm.  The common view is that the nuclear family has become the norm in many Western societies as a result of industrialization and urbanization. This trend began in the late eighteenth and nineteenth centuries, when people were forced to move to cities to find work in the factories that sprang up during the Industrial Revolution. In the twentieth century, greater industrialization resulted in even more people leaving their large extended families. Urbanization also meant that people lived in much smaller houses, which were not big enough for an extended family.  The trend towards nuclear families meant that many of the duties and responsibilities of a family, such as providing food and shelter, cleaning the home, preparing the food, caring for children and their education, and caring for the sick and elderly are no longer shared among the members of the extended family. The parents (or parent) now have to do this, with some help from the state. However, this is the price that people pay for the higher standard of living that may come from living in a city.  We may think we know what we mean by a ‘nuclear' family and an extended family, but reality is more complicated than most people believe. Most nuclear families are part of extended families: children have grandparents and, in many cases, aunts, uncles and cousins as well. Part of what makes them ‘nuclear' is that they live in their own separate household, but it is not the whole story. In Greece or Italy, for example, a nuclear family may live in its own flat, but the extended family may live in the same apartment block or in the same street and family members see each other and even eat together every day.  There is at least one more factor to consider. Family members may be separated from each other by geographical distance, but they may have close emotional ties. Even in North America and northern Europe, grandparents usually have close bonds with their grandchildren, and families often travel long distances so that they can see each other. Grandparents often help their adult children, for example, by cooking and looking after their children in emergencies. In the same way, when their parents become too old to live on their own, adult children may take them into their own homes. As a result, they turn their nuclear family into an extended family.  The structure of families changes over time. The effects of urbanization and industrialization are enormous, but they are not the only reasons for the changes. People marry, have children, become widowed, divorce and die. Children grow up and adults grow old. Nuclear families become extended families and extended families become nuclear families. Family ties stay strong or become weak. One thing is certain: in a changing world, the family will continue to change, but ultimately, it is likely to continue to be the basic unit of society.  
4. The word "sprang up" in the passage is closest in meaning to ____

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

Ha is living in Hanoi city with her family. She is in grade 6. In summer, she doesn’t go to school. Because the weather is very hot, she often goes swimming with some of her friends. She sometimes goes to the park to fly the kite or goes fishing. She also goes on vacation with her family. Her favorite place is Ha Long. Ha likes summer very much.

How does Ha feel about summer?

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I grew up with precious little choice about anything. You ate what you were given, went to school where you were told, wore your sister's hand-me-downs. And twice a year - birthday, Christmas - you got a present. We weren't poor at all but that was entirely normal and I don't remember feeling remotely deprived. Today, as we can see all around us, children seem to have everything - designer clothes, computer games, fussy eating habits and the attention span of itchy gnats. A report yesterday from the Children's Society found that one in ten kids now has mental illness diagnosed and it concluded that materialistic consumer pressure may be partly to blame, with children from poor backgrounds the main victims. Where is it coming from, this consumer pressure? First, from television, and the false dreams on offer there. Children from poor backgrounds, as well as having less money to buy the latest clothes or electronic games, are more likely to have parents without time to spend with them, and homes without access to outside space, so are far more likely to end up spending hours in front of the telly soaking up adverts alongside the easy gratification offered by cartoon; fantasy or drama. You cannot just blame the parents for this; many will be working hard, with no choice, just to put food on the table; after all, how many can afford a house with a garden in a city or suburb these days? Of course parents can correct bouts of consumerism in their children by teaching them what is and is not affordable, but why subject them to the clever traps of marketing people in the first place? Pressure is bad enough as it is, from schoolfriends and celebrity excess, without allowing some of the cleverest adult minds in the sharpest advertising agencies in the world to manipulate them as well. But why is it in a child's interests to be treated like a consumer? It has yet to be proven that giving even adults a wide range of choices improves their lives. In many instances, from too many yoghurts in the supermarket all the way up to a supposed choice of doctor or school, it is just confusing and stressful. I think the fewer, carefully selected, choices we can give young children, the more we help them. Watch the exhausted face of a six-year-old confronted by all this year's Christmas presents, without the time to play with any of them for more than a few minutes, and see what I mean. We are spoilt, and we are spoiling our children. They need to be taught to look down as well as up; to choose to feel fortunate, and not envious -and to recognise that gratification isn't as easy as buying a new toy or switching on a dream. And, as my mother would have been delighted to hear, it will not cost a thing.
2. The word “deprived” in paragraph 1 is closest in meaning to _______

Nam is living in Hanoi city with her family. She is in grade 6. In summer, she doesn’t go to school. Because the weather is very hot, she often goes swimming with some of her friends. She sometimes goes to the park to fly the kite or goes fishing. She also goes on vacation with her family. Her favorite place is Ha Long. Nam likes summer very much.

Who does she go on vacation with?

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Maria Alcalá of Madrid speaks for many Mediterranean people when she says that “a meal without olive oil would be a bore.” No one knows when the Mediterranean civilizations initially fell in love with olives. That occurred before recorded history. However, there is evidence that the cultivation of olive trees began in countries around the Mediterranean Sea in approximately 4000 B.C., and 2,000 years after that people in the eastern Mediterranean region began to produce oil from olives. The Mediterranean still accounts for 99 percent of all world olive oil production. From ancient times until today, the basic process of producing the oil is the same. First, whole olives are crushed. Then, the liquid is separated from the solids. After that, the valuable oil is separated from the water. Many olive growers maintain their ancient traditions and still harvest the olives by hand. “We harvest in the traditional way,” says Don Celso, an olive farmer from Tuscany, Italy. "It would be less expensive to do it with machines, but it's more a social thing. Twenty people come to help with the harvest, and we pay them in oil." Olive oil has had a variety of uses through its long history. In ancient times, olive oil was used as money and as medicine. It was even used during war-heated up and dropped down on attackers. It is still used in religious ceremonies. It is great for protecting the freshness of fish and cheese. There are even olive oil lamps and olive oil soaps. Olive oil enhances the lives of people everywhere. Its benefits, recently confirmed by science, were already understood in ancient times. Mediterranean people are happy to share their secret with the world.
5. Which of the following is true, according to the passage?

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Wild animals ____ (17) an important part in the balance of nature, and provide us with many important products. Wild animals provide fur, food, and recreation. They _____(18) make our surrounding more interesting. Uncontrolled hunting has destroyed much wildlife. People have also harmed animals by destroying their _____(19). Many animals, _____ (20) the passenger pigeon, have disappeared completely. Others, including the whopping crane, the blue whale, and the American alligator, are in danger of dying out

Read the reading below carefully, and then complete it with the best option A, B, C or D given below:
Princess Eugenie (1)______a member of the British Royal Family. She’s (2)_____ youngest daughter of Princess Andrew and Sara Ferguson. Her parents (3)_______ married any more. They are divorced. Her older siser’s name is Beatrice. Beatrice and Eugenie are Prince William and Harry’s cousins. Her grandmother is the Queen and her uncle is Prince Charles. Her full name is Princess Eugenie Victoria Helena of York, so she (4)_______three first names but no surname. She studies Art, English, and Politics at university in Newcastle. (5)_______ the holidays she sometimes  stays with her mother and sometimes with her father. She often travels abroad with her parents. Although she’s a member of the royal family, she is a normal 20-year-old. She likes going out with her friends, she goes to lots of weddings and parties, and enjoys dancing. She’s also really (6)______ fashion. But because she’s a princess, she never has to (7)______the housework or cook dinner. She hardly ever has to do any official royal duties but she always (8)_____ for the charities her mother supports.

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The ability to weep is a uniquely human form of emotional response. Some scientists have suggested that human tears are (1) _____ of an aquatic past, but this does not seem very likely. We cry from the moment we enter this world, for a number of reasons. Helpless babies cry to persuade their parents that they are ill, hungry or uncomfortable. As they (2) _____, they will also cry just to attract parental attention and will often stop when they get it. The idea that having a good cry do you (3) _____ is a very old one and now it has scientific validity since recent research into tears has shown that they (4) _____ a natural painkiller called enkaphalin. By fighting sorrow and pain, this chemical helps you feel better. Weeping can increase the quantities of enkaphalin you (5) _____. Unfortunately, in our society, we impose restrictions upon this naturally (6) _____ activity. Because some people still regard it as a (7) _____ of weakness in men, boys in particular are admonished when they cry. This kind of repression can only increase stress, both emotionally and physically. Tears of emotion also help the body (8) _____ itself of toxic chemical waste, for there is more protein in them than in tears resulting from cold winds or other irritants. Crying comforts and calms can be very enjoyable - (9) _____ the popularity of highly emotional films which are commonly (10) _____ ―weepies‖. It seems that people enjoy crying together almost as much as laughing together

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Many older cities are having modern makeovers and they are being given a new (1) ____. Sometimes the impetus for this (2) ____ of change comes from the need to provide new (3) ____ for particular events being held in the city - a sporting event, or something (4) ____. On other (5) ____ the change just seems to (6) ____ place almost naturally.  Take Birmingham, for instance, (7) ____ it was previously an (8) ____ place to live, it has now become trendy, and this change has been (9) ____ largely by the new-look architecture that can be found everywhere in the city. The old shopping centre has been (10) ____ down and completely rebuilt, and new shopping malls are competing to attract shoppers with the high quality of their services and goods. The area located around the canal, once hidden away and surrounded by decaying factories was often used as a rubbish (11) ____, but it has now become a trendy place (12) ____ up of modern offices, bars, sought-after apartments and restaurants. To (13) ____ up, Birmingham has become the place to be. Even in what was formerly the poorest part of the city an old factory has been (14) ____ into a lively complex of studios, galleries and coffee bars. With its theatres, museums and football teams Birmingham is (15) ____ worth visiting and has something for everyone

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How do children learn about wildlife? And is what they learn the sort of thing they should be learning? It is my belief that children should not just be acquiring knowledge of animals but also developing attitudes and feelings towards them based on exposure to the real lives of animals in their natural habitats. But is this happening? Some research in this area indicates that it is not. Learning about animals in school is often completely disconnected from the real lives of real animals, with the result that children often end up with little or no understanding or lasting knowledge of them. They learn factual information about animals, aimed at enabling them to identify them and have various abstract ideas about them, but that is the extent of their learning. Children’s storybooks tend to personify animals as characters rather than teach about them. For direct contact with wild and international animals, the only opportunity most children have is visiting a zoo. The educational benefit of this for children is often given as the main reason for doing it but research has shown that zoo visits seldom add to children’s knowledge of animals - the animals are simply like exhibits in a museum that the children look at without engaging with them as living creatures. Children who belong to wildlife or environmental organizations or who watch wildlife TV programmes, however, show significantly higher knowledge than any other group of children studied in research. The studies show that if children learn about animals in their natural habitats, particularly through wildlife-based activities, they know more about them than they do as a result of visiting zoos or learning about them in the classroom. Research has also been done into the attitudes of children towards animals. It shows that in general terms, children form strong attachments to individual animals, usually their pets, but do not have strong feelings for animals in general. This attitude is the norm regardless of the amount or kind of learning about animals they have at school. However, those children who watch television wildlife programmes show an interest in and affection for wildlife in its natural environment, and their regard for animals in general is higher
7. The word “regard” in paragraph 4 is closest in meaning to _______.

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A team of social psychologists from California has spent six years studying the reactions of people in cities around the world to different situations. The results show that cities where people have less money generally have friendlier populations. Rio de Janeiro in Brazil, which is often known for its crime, comes out top, and the capital of Malawi, Lilongwe, comes third. But what makes one city friendlier than another? The psychologists from California State University say it has got more to do with the environment than culture or nationality. They carried out a study into the way locals treated strangers in 23 cities around the world. The team conducted their research through a series of tests, where they dropped pens or pretended, they were blind and needed help crossing the street. The study concludes that people are more helpful in cities with a more relaxed way of life such as Rio. While they were there, researchers received help in 93 percent of cases, and the percentage in Lilongwe was only a little lower. However, richer cities such as Amsterdam and New York are considered the least friendly. Inhabitants of Amsterdam helped the researchers in 53 percent of cases and in New York just 44 percent. The psychologists found that, in these cities, people tend to be short of time, so they hurry and often ignore strangers.
3. The word “they” in paragraph 3 refers to ________

Read the reading below carefully, and then complete it with the best option A, B, C or D given below:
When you are in Hong Kong, you can go about taxi, by tram, by bus or (1)______underground. I mysetf prefer the underground (2)___ it is fast easy and cheap. There are(3)_______ tram and bus in Hong Kong, and one cannot drive along the road (4)_________ and without many stops. The underground is therefore usually quicker (5)___ taxis or buses. If you do not know Hong Kong very well, it is very difficult (6)_____________the bus you want. You can take a taxi, but it is (7)_______expensive than the underground or a bus. On the underground you find good maps that tell you the names of the stations and show you (8)____________to get to them, so that it is easy to find your way

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Viet is a student and he (23) ______ in a bed-sit in a suburb of Ha Noi. It is a part of an old house. He has one room and a kitchen and (24) ______ a bathroom with three other people. In his room, there is a bed on the left hand side. There is (25) _______ armchair beside the bed. The desk is opposite the bed and there is a closet (26) ______ the right side of the room. Above the desk, there is a bookshelf and above the bed there is a clock. He has a TV and a cassette player. The room is rather (27) ______, but it’s OK. Viet likes this room very much

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The knock-on effect of volunteering on the lives of individuals can be profound. Voluntary work helps foster independence and imparts the ability to deal with different situations, often simultaneously, thus teaching people how to work their way through different systems. It therefore brings people into touch with the real world; and, hence, equips them for the future.  Initially, young adults in their late teens might not seem to have the expertise or knowledge to impart to others that say a teacher or agriculturalist or nurse would have, but they do have many skills that can help  any skills that can help others. And in the absence of any particular talent, their energy and enthusiasm can be harnessed for the benefit of their fellow human beings, and ultimately themselves. From all this, the gain to any community no matter how many volunteers are involved is immeasurable.  Employers will generally look favourably on people who have shown an ability to work as part of a team. It demonstrates a willingness to learn and an independent spirit, which would be desirable qualities in any employee. So to satisfy employers' demands for experience when applying for work, volunteering can act as a means of gaining experience that might otherwise elude would-be workers and can ultimately lead to paid employment and the desired field.  The knock-on effect of volunteering on the lives of individuals can be profound. Voluntary work helps foster independence and imparts the ability to deal with different situations, often simultaneously, thus teaching people how to work their way through different systems. It therefore brings people into touch with the real world; and, hence, equips them for the future.  Initially, young adults in their late teens might not seem to have the expertise or knowledge to impart to others that say a teacher or agriculturalist or nurse would have, but they do have many skills that can help  any skills that can help others. And in the absence of any particular talent, their energy and enthusiasm can be harnessed for the benefit of their fellow human beings, and ultimately themselves. From all this, the gain to any community no matter how many volunteers are involved is immeasurable.  Employers will generally look favourably on people who have shown an ability to work as part of a team. It demonstrates a willingness to learn and an independent spirit, which would be desirable qualities in any employee. So to satisfy employers' demands for experience when applying for work, volunteering can act as a means of gaining experience that might otherwise elude would-be workers and can ultimately lead to paid employment and the desired field.  
10. Which of the following is stated about making petty criminals do some community work?

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The American southwest is full of deserts. If you ever go there, you might get to see a very strange event. We are talking something called the sailing stones. Sometimes, stones in the southwestern desert move by themselves. Wind doesn’t seem to push them. People and animals don’t touch them. However, these stones still move. Sometimes they travel more than a hundred meters. They always leave a trail in the sand behind them. This is useful because we can look at the trail and figure out how far a stone has moved. How is this possible? How can stones move all by themselves? Scientists have been studying this for years. People have offered all kinds of theories. One of the earliest theories was that wind pushes the stones. That theory isn’t correct, because some of the stones weigh more than 300 kilograms. When it seemed like there was no logical explanation for the sailing stones, people started coming up with crazier ideas. Some people said that aliens were moving the stones, and others said that clever people were playing a joke. Finally, in 2013, a scientist came up with an explanation for the sailing stones. This scientist normally studies weather on other planets, and when he heard about the sailing stones, he became interested in them. He found out that ice forms on the bottom of the stones. When that happens, even a very light wind can push the stone for long distances. To prove his theory, the scientist did an experiment. He put a rock in his freezer and let some ice form on it. Then, he put sand and a little water in a tray. Finally, he put his frozen rock on top of the sand. When he blew on the rock, it moved. Even when he blew very gently, he had no problems moving the rock. Here is something interesting about the sailing stones. Curious people visit the desert in the southwest to see them. A lot of those people don’t like to hear the scientific explanation for the sailing stones. Many people prefer to feel that the stones are still a mystery.
7. What can be inferred from the scientist’s experiment?

Read and circle the best option A, B, C or D to complete the passage:

I live in a house near the sea. It is ...(1)... old house, about 100 years old and...(2)... very small. There are two bed rooms upstairs...(3)... no bathroom. The bathroom is downstairs ...(4)... the kitchen and there is a living room where there is a lovely old fire place. There is a garden...(5)... the house. The garden...(6)... down to the beach and in spring and summer...(7)... flowers every where. I like alone...(8)... my dog, Rack, but we have a lot of visitors. My city friends often stay with ...(9)...

I love my house for... (10)... reasons: the garden, the flowers in summer, the old fire place, but the best thing is the view from my bedroom window.

(2)......................

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One of my favorite movies is When Harry Met Sally. I can watch it again and again and love it every single time - maybe even more than I did before. There’s a scene that will be familiar to any of the movie’s fans: Harry and Sally have just set off on their drive to New York City and Harry starts telling Sally about his dark side. He mentions one thing in particular: whenever he starts a new book, he reads the last page first. That way, in case he dies while reading it, he’ll know how it ends. Harry will know how it ends, true, but doesn’t that also ruin the book? If you know the ending, how can you enjoy the story? As it turns out, easily. A study in this month’s issue of Psychological Science comes to a surprising conclusion: spoilers don’t actually spoil anything. In fact, they may even serve to enhance the experience of reading. Over 800 students from the University of California San Diego took part in a series of three experiments, where they read one of three types of short story: a story with an ironic twist (such as Roald Dahl), a mystery (such as Agatha Christie), and a literary story (such as Raymond Carver). For each story, there was a spoiler paragraph that revealed the outcome. The students read the stories either with or without the spoiler. Time to reconsider, it seems, what we call a spoiler. The so-called “spoiled” stories were actually rated as more enjoyable than those that were “unspoiled,” no matter what type of story was being read. Knowing the ending, even when suspense was part of the story’s goal, made the process of reading more, not less, pleasurable. Why would this be the case? Perhaps, freed from following the plot, we can pay more attention to the quality of the writing and to the subtleties of the story as a whole. Perhaps we can be more attuned to those signs that foreshadow the unfolding of the action and take pleasure in our ability to identify them. Whatever the case may be, it may not be as urgent as we think it is to avoid spoilers. Indeed, it might be just fine to embrace them openly. Harry might have the right idea after all. In fact, he might be getting at the very thing that lets me watch him meet Sally over and over and over again, and enjoy the process every single time.
2. The word “it” in paragraph 1 refers to _______

Read the reading below carefully, and then complete it with the best option A, B, C or D given below:
The story of gold is an adventure involving kings, queens, pirates, explores, conquerors, andthe native peoples they conquered. Throughout history, gold had (1)_____a magic spellover those it touch. Gold is beautiful and rare; a soft shiny metal that can be moulded intomany(2)_____.It has been used for money, jewellery, and to decorate special buildings suchas palaces and places of worship. (3)_____the precious metal was discovered, prospectorsrushed to mine it, starting new cities and countries as they went. Gold and the people who love it have helped shape the world we live in today. Gold is one of many elements, orsubstances that cannot be changed by normal chemical (4)_____, that are found in theEarth’s crust. Gold has a warm, sunny colour and (5)_____it does not react (6)_____air,water, and most chemicals, its shine never fades. In its natural (7) _____, gold is soft andeasily shaped. When heated to 1,062 Celsius it melts and can be poured(8)_____ moulds toform coins, gold bars, and other objects. Stories have been told, movies (9)_____andlegends born about the (10)_____of the world’s great gold deposits. It is a saga of dreams,greed, ambition and exploration

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Waves don’t always (31) _________ the beaches with enough height or force to allow a sport such as surfing. The surfers in the 1960s looked for something that would allow them to have the thrill of riding waves without having to actually go in the water on days when it looked more like a (32) _________ rather than a series of hills reaching the shore. The simple solution was to put wheels on a board, and before long, a new style of surfing was born, but it was done on land. Looking back, it is easy to see how skateboarding could become more popular than even surfing. To surf you need coastline and waves, but to skateboard, all you need is a paved surface. As its popularity grew, skateboarding took (33) _________ new forms, and adventurous skateboarders tried new stunts. Skateboard parks started popping up throughout several countries, and there was plenty of innovation in skateboards. Early skateboards had metal wheels, usually (34) _________ from roller skates. Clay wheels replaced these, followed by the special urethane wheels that are used today. The innovations with wheels made the sport safer in many ways, but they also (35) _________ the stunts to become more and more extreme