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:
People are increasingly (1) _______ alternative medicine, such as homeopathy, acupuncture and herbal medicine. Alternative medicine is useful as it can help millions of people with illnesses which conventional medicine cannot (2) _______ . Alternative medicine is ‘holistic’ since it deals with the whole person, (3) _______  conventional medicine just focuses on the illness. While many conventional doctors rely on quickly prescribing drugs for most problems, alternative therapists tend to have more time to treat their patients. Treatments like acupuncture have proved (4) _______ , for problems like back pain, chronic fatigue and asthma when conventional treatment does not work. Critics say that there is no scientific proof that alternative therapies actually work; some (5) _______ even claim that they are dangerous due to their side effects and because patients delay proper treatment for serious conditions. However, alternative medicine actually has fewer side effects than most conventional treatments.

Read the following passage and choose the best answer (A, B, C, D):
Chess, often (1)______ to as the Royal Game, is the oldest of all board games which do not contain an element of chance. The origins of chess are uncertain, (2)______ there are a number of legends regarding its invention. One story says that it was King Solomon who invented chess, another that it was the Greek god Hermes, and yet another that the Chinese mandarin Han-Sing was responsible for its creation. In fact, chess almost certainly originated in India in the sixth or seventh century AD. The game’s popularity then spread quickly through Persia (now known as Iran) and from there came to Europe. The first documented reference to chess in literature is in a Persian romance which was written about 600 AD. It is (3)_______ the word ‘chess’ comes from ‘shah’, the Persian word for ‘king’ and that ‘checkmate’, the game’s winning (4)_______, comes from the phrase ‘shah mat’, (5)______ ‘the king is dead’. The rules and pieces used in the game have undergone changes over the centuries. Modem chess owes much to the Spaniard Lopez de Segura, who in 1561 wrote the first book on how to play the game. In it, he introduced the concept of ‘castling’, which had not been part of the game until then.

Read the following passage and then choose the best answer.
This is a picture of Tom’s family. He is my pen pal. He lives in a lovely old town in England. There are six people in his family: his parents, his aunt, his uncle, his brother and Tom. They live happily together.
Tom’s family lives in a nice house in the town. His house is near a park and next to a bookstore. There are seven rooms, a garage and a beautiful garden in the house. The seven rooms include three bedrooms, two bathrooms, one living room, and a large kitchen. Tom and his brother share a bedroom and they don’t really like it. The house was built in 1999 but it is still new and fashionable. The garden is so beautiful with many kinds of flowers. Tom loves the garden so much.
People in Tom’s family have different jobs. His father is fifty and he is a teacher. He teaches in a secondary school in the town. His mother is forty-eight and she is a housewife. She takes care of all the people in the house. She grows vegetables in the garden and usually prepares wonderful meals. His brother, Peter is a pilot. He flies a plane in the sky. He is very handsome. His aunt is a nurse. She helps doctors take care of sick people in the hospital. His uncle is a journalist. He writes articles for a local newspaper. Tom is a student and he wants to be a doctor in the future. I will go to England to see him again next summer vacation.

 What is TRUE about Tom?

Read the passage below carefully, and then choose the best answer:
Getting Curious about Curiosity’s Mission to Mars
The topic of space exploration reached a high point during the 1960s, as Soviets and Americans competed for dominance. Yet after the Soviets put the first man in space and Americans landed the first men on the moon, many people lost interest as nothing else could compare to these groundbreaking accomplishments. Recently, a robotic rover on a mission to Mars has generated massive interest the public. Curiosity is a robotic car-sized rover that is part of NASA’s long-term plan to learn more about the terrain and conditions on the Red Planet. One of its main goals was to determine whether or not it was possible for life to develop on Mars. Using mechanical arms, Curiosity can gather soil and rock samples from the ground and analyze them to determine their chemical composition. Since transporting around Mars was vital to the success of the mission, a lot of effort was put into Curiosity’s transportation abilities. Mars’ terrain is not smooth, so designers enabled Curiosity to roll over bumpy areas. Once Curiosity left the Earth, there would be no opportunities to repair it, so engineers also had to be spot on about Curiosity’s power solution. Therefore, they devised a system that can generate power internally from a radioisotope generator. Finally, to capture stunning pictures of Mars, Curiosity was equipped with several state-of-the-art cameras. The cameras also help the rover avoid hazards, navigate, and detect information about the atmosphere. After a 350-million-mile journey, Curiosity landed on Mars in 2012, an impressive 1.5 miles away from its initial target. Upon arrival, NASA’s website crashed due to an overload of visitors. People just couldn’t seem to get enough information on the mission. But the real thrills came in the weeks and months that followed, as people got their first real glimpse about what life was really like on Mars. The mission was originally supposed to last for two years, but scientists are now optimistic that it could continue for up to 15 years, depending on Curiosity’s condition. No matter what happens at this point, it is safe to say that Curiosity’s mission to Mars has been a smashing success.
7. Which of the following is NOT the accomplishment done by _Curiosity_?

Read the reading below carefully, and then complete it with the best option A, B, C or D given below:
Language is the normal way humans communicate. Human language has syntax, a set of rules for connecting words together to make statements and questions. Language can also be changed, by adding new words, for example, to describe new things. Other animals may (1)________ a set of calls which their predecessors have left. Language may be done by speech or by writing or by moving the hands to make (2) ________. It follows that language is not just any way of communicating. Even some human communication is not a language, like (3) _________ language for example. Chinese is the language with the most native speakers in the world, but Chinese is not really a language. It is a close family of dialects, some of (4) ________ are as different as Romancelanguages are from one another. English is often called "the international language", or lingua franca. It is the main second language of the world and the international language of science, travel, technology, business, diplomacy, and entertainment. French had a similar (5) _________ until the 20th century, and other languages had it at other times

In former days, women were considered not to be suitable for becoming a _____.

(477)______

Read the following passage and choose the best answer (A, B, C, D):
Living things include both the visible world of animals, plants, and fungi as well as the invisible world of bacteria and viruses. On a basic level, we can say that life is ordered. Organisms have an enormously complex organization. We're all familiar with the intricate systems of the basic unit of life, the cell. Life can also "work." Living creatures can take in energy from the environment. This energy, in the form of food, is transformed to maintain metabolic process and for survival. Life grows and develops. This means more than just replicating or getting larger in size. Living organisms also have the ability to rebuild and repair themselves when injured. Life can reproducing. Think about the last time you accidentally stubbed your toe. Almost instantly, you moved back in pain. Finally, life can adapt and respond to the demands placed on it by the environment. There are three basic types of adaptations that can occur in higher organisms.Reversible changes occur as a response to changes in the environment. Let's say you live near sea level and you travel to a mountainous area. You may begin to experience difficulty breathing and an increase in heart rate as a result of the change in altitude. These symptoms go away when you go back down to sea level.Body-related changes occur as a result of prolonged changes in the environment. Using ther previous example, if you were to stay in the mountainous area for a long time, you would notice that your heart rate would begin to slow down and you would begin to breath normally. These changes are also reversible. Genotypic changes (caused by genetic mutition ) take place within the genetic makeup of the organism and are not reversible. An example would be the development of resistance to pesticides by insects and spiders.
7. Which type of adaptation is permanent?

Choose the best answer:
This TV series is more like a portrait _________ life than any others.

Choose the sentence A, B, C or D which in closest in meaning to the printed sentence.:
'You should have finished the report by now.' John told his secretary.

Choose the best answer:
empty/ cleaned/ milk/ People/ and/ bottles/ refilled/ milk/ with.

Read the passage below carefully, and then choose the best answer:
Make Home a Little Nicer
Some people think that if they don’t have a yard, they can’t keep a garden. Fortunately, that’s not true. For people who live in apartment buildings, there is another option: rooftop gardens. A rooftop garden is just a garden that you keep on your roof. Rooftop gardens are very popular in cities. Most building roofs go to waste – people don’t use that space for anything. Putting a garden on your roof is a nice way to turn an empty space into something that is pretty and relaxing. Rooftop gardens are not a new idea. About 2,600 years ago, people in Ancient Mesopotamia planted rooftop gardens. There were similar gardens in Ancient Rome and Ancient Egypt. These gardens had a very important purpose. Many ancient cities had walls. The enemy army usually tried to destroy the city’s food, so the people in the city kept their gardens on top of their walls. That way, they could continue to grow food. Today’s rooftop gardens don’t keep us alive, but they still have nice benefits. Plants absorb heat, so if there are a lot of them on a rooftop, they make the whole building cooler. As a result, people in the building use the air conditioning less which means they use less electricity. One study said that if every roof in Tokyo had a garden, the city would save more than one million dollars a day on electricity. Rooftop gardening is harder than regular gardening. Here are some tips. First of all, be safe. Build a fence around your garden. You don’t want the wind to blow plants off your roof! Also, remember that rooftop gardens get more sun. If you have a plant that shouldn’t get too much sun, remember to put it in the shade sometimes. There are many other things that you need to know before you start a rooftop garden. Do some research and then give it a try. You’ll make your little part of the city much nicer.

1. Why did people in ancient cities have rooftop gardens?

Choose the best answer:
Daisy is so ______. She only cares about herself, not about other people.

Choose the best answer:
Digital cameras is a wonderful ___________.

We are pleased to announce that the installation of the new manufacturing equipment in our main plant has been completed. The new machines---131--- workflow by allowing for flexibility in production. With six mixing tanks of ---132--- sizes, we expect to be able to fill a wider range of orders, from small to very large. This ---133--- is an important way to ensure that Balm Manufacturing continues to be a leader in the fragrance industry.---134---. Jim Martel, who is organizing this effort, will contact each of you soon with details.

133...................

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

The Early Life of Bill Gates

While Bill Gates had to work (1)………..to become what he is today, his story isn’t exactly a rags-to-riches one as he was born into a fairly wealthy family. His father was a successful attorney while his mother was a school teacher who went onto a member of the Board of Directors of the First Interstate Bank. Gates was a bright student and (2) ……….well academically, especially in mathematics. And, this was exemplified by the 800 points that young Bill Gates scored in the mathematics part of an intelligence test.

Bill Gates developed a (3) ………..for computers and programming as early as 13. At the same age, Gates enrolled in the Lakeside School, a private preparatory school. While Gates was still at the school, the school administration decided to buy a computer from the General Electric Company. (4) ………his flare in programming, the school administration excused Gates from classes to allow him to (5) ………….his interest. On the GEC machine, Bill Gates built his first ever computer program.

At the school, Gates met Paul Allen and they worked (6)………..to find bugs in a system belonging to Computer Center Corporation. In exchange for computer time and royalties, Gates and Allen along with two other students wrote a payroll program for Information Sciences. This led to Gates’ school becoming fully aware (7)………..his talent and they had him build a program (8)………..scheduled students in classes.

Gates and Allen continue to build software and at just the age of 15, Bill Gates sold a software to optimize traffic for $$ 20,000. A few years later, he developed another software and earned $$ 30,000 from (9)...... And, this was the start of Bill Gates’ journey to a billion-dollar (10)…………..

(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 :
All native peoples create artworks that use what is (1)_________ to them in terms of local resources. In the Americas, the aboriginal people created handicrafts that had both a cultural and an artistic significance. These beautiful crafts were made by master Native American craftsmen, and their skills have been (2)_________ down through countless generations. Religious or spiritual beliefs can play a major role in the arts and handicrafts of all people. One example of a Native American handicraft is made of a willow branch and thin strips of leather. The branch is formed into a circular (3)_________ that is meant to hang in a person’s living area. Often (4)_________ with feathers on the outside of the circle, it is called a dream catcher. It is related to the belief that these special crafts could catch bad dreams sent by the spirits. To Native Americans, dreams were special (5)_________ sent from the great beyond. The dream catcher would allow good dreams to pass through it; however, nightmares would be caught and then released with the first morning light

Read the following passage and choose the best answer (A, B, C, D):
Genetics is the study of hereditary characteristics that are passed down from one generation of living organisms to another. Although farmers have used selective breeding to improve the resilience of crops and animals, it wasn't until the mid-1800s that Gregor Mendel started the science of genetics as we know it today. Following Mendel's methods, scientists have discovered "chromosomes" and "DNA". With the ability to study DNA, scientists were able to study the genetic differences between races. Modern genetics discovered that all humans are descendants of "Mitochondrial Eve," a woman who lived over 150,000 generations have passed, and many subtle differences are now evident. Humans share at least 99% of their genetic makeup. A 1% difference may not seem like much, but when you consider that a chimpanzee shares 98% of human genes, you realize how much a 1% difference makes! Africans are more closely related to Europeans than any other two groups despite the fact that they differ so much in appearance. The biggest genetic differences are found between Africans and the native populations of Nord America (22%). However, it is essential to note that the genetic differences between people of the same race are much greater than the differences between people of different races. This means that the argument which claims that genets differences make one race superior to another is nothing but a tall story. The differences in various populations may also be the result of circumstances rather than genetic makeup. Factors such as climate, diet, health care, education, and employment as well as other socioeconomic factors are all influential. However, there are some traits which are genetic, for example, then is a much higher incidence of sickle cell anemia among black populations that any other population group. Adult African-Americans and Latinos have twice as many cases of diabetes than Caucasians. In the U.S, Latinos suffer more deaths from liver disease than other races. Europeans suffer more from heart disease and cancer. Genes not only affect our susceptibility to disease, they also affect our physical attributes. The Dinka people from the Sudan are considered to be the tallest people with men having an average height of 6ft 3 in, while women hit the big time with an impressive 5ft 3 in. This contrasts sharply with the Pygmy tribes who get the short end of the stick at only about 4ft 11 in tall. Genetic differences may help US to tailor health service to people of different races or to detect life threatening diseases early. However, they are not significant enough to support the claim that one race is superior to another. In fact, our modern scientific understanding of human genetic diversity flit in the face of almost all our social stereotypes.
2. Why do farmers practice selective breeding?

Read the passage below carefully, and then choose the best answer:
The life of a Professional Gamer
Gordon Hayward has a pretty cool job – he plays basketball for the team Utah Jazz in the American National Basketball Association (NBA). But in his free time, he also works as a professional gamer, competing in StarCraft 2 tournaments. Even as a top – level athletes, Gordon is impressed with the amount of commitment needed for these competitions. “These guys are professionals”, he says. “They play this game for their job, so they take this as seriously as I take playing basketball for a living.” Competitive gaming has been around for almost as long as video games themselves, but it’s only recently that people have started earning money from it. This is because companies sponsor gamers, and tournaments. The gaming industry is now worth about $6 billion, and it is growing every year. Michel Masquelier, President of IMG Media (one of the world’s largest entertainment companies), called gaming the number one activity in the world for men aged 18 to 24. Just as young people aspire to play in the NBA, many also dream of becoming professional gamer. There are now big global tournaments like World Cyber Games and Major League Gaming Championships, where hundreds of gamers come to compete in popular game like StarCraft, WarCraft, Counterstrike, and the football game FIFA in front of an audience. The prize money in a tournament can reach a few million dollars. One thing gamer, and athletes have in common is that they often play in teams. These “clans”, as gamers call them, usually play tournaments together and practise against one another. Professional gamers and their clans earn money through sponsorships, winning tournament, and teaching and training people to play video games better. Like athletes, gamers must train long and hard to become the best at the game that they play. Most gamers only compete in one game, the same way that most professional athletes only play one sport. Adrian Kwong, a professional gamer, says that he usually practises StarCraft 2 for more than three hours a day. Some days he even plays for more than five hours. “To become a pro player, it takes determination, skill, and extensive practice,” says Katie Goldberg, who is vice – president of communications at Major’s League Gaming. Gordon Hayward isn’t going to give up his basketball career anytime soon, but he says that athletes and gamers are not that different: “You have to train hard if you want to be the best, and that goes for everything, not just basketball. That also goes for video games like StarCraft”.
3. Why does the passage say gamers have recently started earning money?

Read the passage below carefully, and then choose the best answer:
Cleaning the World’s Oceans
Imagine taking a romantic walk on the beach with your loved one. As the sun begins to set, you hope to treasure this moment forever. Just then, your bare feet stumble over something and you hear a crack. You have just stepped upon a plastic soda bottle and some junk that the tide has washed ashore. Scenarios like this are happening more frequently due to an access amount of sea rubbish, and the worst of it is found far from land. The increasing accumulation of garbage in oceans is due to a number of factors. Studies suggest that 80 percent of all debris originated on land. The majority of this waste is in the form of plastics. This is particularly troublesome because plastic does not degrade at the same rate that other materials do. Therefore, these articles will remain there for quite some time. Some of the pollution is caused accidentally. For example, about 10,000 product-filled containers are lost at sea every year by freight ships. In other cases, the littering is more deliberate, such as the moment when people toss things into the water from boats or land. One of the most startling discoveries of recent years was an area which is now dubbed the Great Pacific Garbage Patch. It is a large collection of marine debris that collected in the North Pacific Ocean. Although the patch is quite massive, it is undetectable from satellites in space because most of the rubbish is underneath the surface. It was discovered in 1997 by a man who happened to spot it while returning home from a sailing race. The patch formed as a result of rubbish being carried by currents and then getting trapped in the area. Thankfully, the problem of ocean garbage is not being ignored. Organizations like the National Oceanic and Atmospheric Association (NOAA) are taking action. It has funded 76 projects that take an aggressive approach to eliminating sea rubbish. Since 2006, it has removed 3,814 metric tons of marine debris from oceans. Methods of rubbish removal include using machines that skim the surface of ocean waters and remove any drifting materials found. In addition, special traps are set by the mouths of rivers to snatch rubbish before it reaches the sea. If everyone does their part, sea rubbish seems like an issue that can be resolved.
4.  Which of the following statements about pollution in oceans is correct?

Read the following passage and choose the best answer (A, B, C, D):
The position of sport in today’s society has changed out of all recognition. People no longer seem to think of sports as ‘just a game’ – to be watched or played for the (1) _________ of enjoyment. Instead, it has become big business worldwide. It has become accepted practice for leading companies to provide sponsorship. TV companies pay large sums of money to screen important matches or competitions. The result has been huge rewards for athletes, some of (2) _________ are now very wealthy, particularly top footballers, golfers and tennis players. (3) ________ , it is not unusual for some athletes to receive large fees on top of their salary, for advertising products or making personal appearances. A trend towards shorter working hours means that people generally tend to have more free time, both to watch and to take in sporting activity; sport has become a significant part of the recreation industry that we now rely (4) _________ to fill our leisure hours. Professional sport is a vital part of that industry, providing for millions of (5) _________ people all over the world.

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 ‌from‌ ‌43‌ ‌to‌ ‌50.‌ ‌
There‌ ‌are‌ ‌two‌ ‌basic‌ ‌types‌ ‌of‌ ‌glaciers,‌ ‌those‌ ‌that‌ ‌flow‌ ‌outward‌ ‌in‌ ‌all‌ 
directions‌ ‌with‌ ‌little‌ ‌regard‌ ‌for‌ ‌any‌ ‌underlying‌ ‌‌terrain‌ ‌‌and‌ ‌those‌ ‌that‌ ‌are‌ ‌confined‌ ‌by‌ ‌terrain‌ ‌to‌ ‌a‌ ‌particular‌ ‌path.‌ ‌The‌ ‌first‌ ‌category‌ ‌of‌ ‌glaciers‌ ‌includes‌ ‌those‌ ‌massive‌ ‌blankets‌ ‌that‌ ‌cover‌ ‌whole‌ ‌continents,‌ ‌appropriately‌ ‌called‌ ‌ice‌ ‌sheets.‌ ‌There‌ ‌must‌ ‌be‌ ‌over‌ ‌50,000‌ ‌square‌ ‌kilometers‌ ‌of‌ ‌land‌ ‌covered‌ ‌with‌ ‌ice‌ ‌for‌ ‌the‌ ‌glacier‌ ‌to‌ ‌
qualify‌ ‌as‌ ‌an‌ ‌ice‌ ‌sheet,‌ ‌when‌ ‌portions‌ ‌of‌ ‌an‌ ‌ice‌ ‌sheet‌ ‌spread‌ ‌out‌ ‌over‌ ‌the‌ ‌ocean,‌ ‌they‌ ‌form‌ ‌ice‌ ‌shelves.‌ ‌
About‌ ‌20,000‌ ‌years‌ ‌ago‌ ‌the‌ ‌Cordilleran‌ ‌Ice‌ ‌sheet‌ ‌covered‌ ‌nearly‌ ‌all‌ ‌the‌ ‌mountains‌ ‌in‌ ‌southern‌ ‌Alaska,‌ ‌western‌ ‌Canada,‌ ‌and‌ ‌the‌ ‌western‌ ‌United‌ ‌States.‌ ‌It‌ ‌was‌ ‌about‌ ‌3‌ ‌kilometers‌ ‌deep‌ ‌at‌ ‌its‌ ‌thickest‌ ‌point‌ ‌in‌ ‌
northern‌ ‌Alberta.‌ ‌Now‌ ‌there‌ ‌are‌ ‌only‌ ‌two‌ ‌sheets‌ ‌left‌ ‌on‌ ‌Earth,‌ ‌those‌ ‌covering‌ ‌Greenland‌ ‌and‌ ‌Antarctica.‌ ‌Any‌ ‌domelike‌ ‌body‌ ‌of‌ ‌ice‌ ‌that‌ ‌also‌ ‌flows‌ ‌out‌ ‌in‌ ‌all‌ ‌directions‌ ‌but‌ ‌covers‌ ‌less‌ ‌than‌ ‌50,000‌ ‌square‌ ‌kilometers‌ ‌is‌ ‌called‌ ‌an‌ ‌ice‌ ‌cap.‌ ‌Although‌ ‌ice‌ ‌caps‌ ‌are‌ ‌rare‌ ‌nowadays,‌ ‌there‌ ‌are‌ ‌a‌ ‌number‌ ‌in‌ ‌northeastern‌ ‌Canada,‌ ‌on‌ ‌
Baffin‌ ‌Island,‌ ‌and‌ ‌on‌ ‌the‌ ‌Queen‌ ‌Elizabeth‌ ‌Islands.‌ ‌The‌ ‌second‌ ‌category‌ ‌of‌ ‌glaciers‌ ‌includes‌ ‌those‌ ‌of‌ ‌a‌ ‌variety‌ ‌of‌ ‌shapes‌ ‌and‌ ‌sizes‌ ‌generally‌ ‌called‌ ‌mountain‌ ‌or‌ ‌alpine‌ ‌glaciers.‌ ‌Mountain‌ ‌glaciers‌ ‌are‌ ‌typically‌ ‌identified‌ ‌by‌ ‌the‌ ‌landform‌ ‌that‌ ‌controls‌ ‌their‌ ‌flow.‌ ‌One‌ ‌form‌ ‌of‌ ‌mountain‌ ‌glacier‌ ‌that‌ ‌resembles‌ ‌an‌ ‌ice‌ ‌cap‌ ‌in‌ ‌that‌ ‌it‌ ‌flows‌ ‌outward‌ ‌in‌ ‌several‌ ‌directions‌ ‌is‌ ‌called‌ ‌an‌ ‌ice‌ ‌field.‌ ‌The‌ ‌difference‌ ‌between‌ ‌an‌ ‌ice‌ ‌field‌ ‌and‌ ‌an‌ ‌ice‌ ‌cap‌ ‌is‌ ‌‌subtle‌.‌ ‌Essentially,‌ ‌the‌ ‌flow‌ ‌of‌ ‌an‌ ‌ice‌ ‌field‌ ‌is‌ ‌somewhat‌ ‌controlled‌ ‌by‌ ‌surrounding‌ ‌terrain‌ ‌and‌ ‌thus‌ ‌does‌ ‌not‌ ‌have‌ ‌the‌ ‌domelike‌ ‌shape‌ ‌of‌ ‌a‌ ‌cap.‌ ‌
There‌ ‌are‌ ‌several‌ ‌ice‌ ‌fields‌ ‌in‌ ‌the‌ ‌Wrangell.‌ ‌St.‌ ‌Elias,‌ ‌and‌ ‌Chugach‌ ‌mountains‌ ‌of‌ ‌Alaska‌ ‌and‌ ‌northern‌ ‌British‌ ‌Columbia.‌ ‌Less‌ ‌spectacular‌ ‌than‌ ‌large‌ ‌ice‌ ‌fields‌ ‌are‌ ‌the‌ ‌most‌ ‌common‌ ‌types‌ ‌of‌ ‌mountain‌ ‌glaciers:‌ ‌the‌ ‌cirque‌ ‌and‌ ‌valley‌ ‌glaciers.‌ ‌Cirque‌ ‌glaciers‌ ‌are‌ ‌found‌ ‌in‌ ‌depressions‌ ‌in‌ ‌the‌ ‌surface‌ ‌of‌ ‌the‌ ‌land‌ ‌and‌ ‌have‌ ‌a‌ ‌characteristic‌ ‌circular‌ ‌shape.‌ ‌The‌ ‌ice‌ ‌of‌ ‌valley‌ ‌glaciers,‌ ‌bound‌ ‌by‌ ‌terrain,‌ ‌flows‌ ‌down‌ ‌valleys,‌ ‌curves‌ ‌around‌ ‌‌their‌ ‌‌corners,‌ ‌
and‌ ‌falls‌ ‌over‌ ‌cliffs.‌ ‌

‌The‌ ‌word‌ ‌“subtle”‌ ‌in‌ ‌paragraph‌ ‌5‌ ‌could‌ ‌best‌ ‌be‌ ‌replaced‌ ‌by____________.‌ ‌