Mark the letter A, B, C, or D on your answer sheet to indicate the undelined part that needs correction in each of the following questions:
Carefully guiding a needle that's longer than his tiny fingers, a young boy in Pakistan stitches together the leather pieces of a soccer ball. He sits crouched in the corner of a hot, airless shed for 12 hours. For his long day's work, he will earn 60 cents.
The boy is one of more than 200 million children who work at hard, sometimes dangerous jobs all over the world. Child labor exists in two-thirds of the world's nations. From Indonesia to Guatemala, poor children as young as six are sent off to work. Often they are mistreated and punished for not working hard enough. Children mix the gunpowder for firecrackers in China and knot the threads for carpets in India, all for pennies a day. Sometimes they are sold as slaves.
In a speech to the Child Labor Coalition when he was U.S. Secretary of Labor, Robert Reich expressed gratitude for the organization's work to end abuse of child labor, "You turned up the heat, and you got results." He also congratulated Craig Kielburger, then 13, of Canada, who traveled the world for a year fighting for kids' rights. Craig believes kids can make a difference. He offers this advice, "Write letters to companies and government officials. Put pressure on leaders to make changes and to stop the misuse of children."
One solution to the child-labor problem in poor countries is education. "The future of these countries," Secretary Reich declared, "depends on a work force that is educated. We are prepared to help build schools."
Education has helped to make the world a brighter place for one youth, Aghan of India. When he was nine, Aghan was kidnapped from his home and sold to a carpet maker. Aghan's boss was very cruel. "I was always crying for my mother," he recalls. Aghan's dream was to learn to write so that he could send letters to his parents. Fortunately, a group that opposes child labor rescued Aghan from the factory. He was sent to a shelter in New Delhi where he worked hard to learn to write.

According to the article, children who work under poor conditions,     .

Read the following passage and choose the best answer (A, B, C, D):
Going to a restaurant shouldn’t be your excuse to eat unhealthy foods. Follow these tips and not only will you enjoy your meal more, you’ll feel satisfied and happy when you’re done. First, ask for it your way. Dining out is no time to be a meek consumer, notes Michael F. Jacobson, Ph.D., executive director of the Center for Science in the Public Interest (CSPI) and coauthor of the book Restaurant Confidential. “You need to be an assertive consumer by asking for changes on the menu,” he says. For instance, if an item is fried, ask for it grilled. If it comes with French fries, ask for a side of veggies instead. Ask for a smaller portion of the meat and a larger portion of the salad; for salad instead of coleslaw; baked potato instead of fried. “Just assume you can have the food prepared the way you want it,” says Dr. Jacobson. “Very often, the restaurant will cooperate.” Second, order A Salad before ordering anything else on the menu. Scientists at Pennsylvania State University found that volunteers who ate a big veggie salad before the main course ate fewer calories overall than those who didn’t have a first-course salad, notes Novick. However, remember: Salads Shouldn’t Be Fatty. This is a vegetable course-keep it tasty but healthy. That means avoiding anything in a creamy sauce (coleslaw, pasta salads, and potato salads), and skipping the bacon bits and fried noodles. Instead, load up on the raw vegetables, treat yourself to a few well-drained marinated vegetables (artichoke hearts, red peppers, or mushrooms), and for a change, add in some fruit or nuts. Indeed, fruits such as mango, kiwi, cantaloupe, and pear are often the secret ingredient in four-star salads.  
1. Which of the followings best replaces the word "meek" in the first paragraph?

Read the following passage and choose the best answer (A, B, C, D):
The blazes, which have been burning across Australia for months, have razed homes  and wiped out entire towns. Across Australia, nearly 18 million acres of land have been burned – much of it bushland, forests and national parks, home to the country’s beloved and unique wildlife. Nearly half a billion animals have been impacted by the fires in NSW alone, with millions potentially dead, according to ecologists at the University of Sydney. That figure includes birds, reptiles, and mammals, except bats. It also excludes insects and frogs. The total number of animals affected nationwide could be as high as a billion, according to Christopher Dickman, the University of Sydney ecologist who led the report.  "The scale of these fires is unprecedented," said Dieter Hochuli, an environmental sciences professor at the University of Sydney. “There are substantial concerns about the capacity of these (ecosystems) to rebound from the fires.”  Some animals, like koalas and kangaroos for instance, are primarily killed by being incinerated in flames or choking on smoke. Nearly a third of all koalas in NSW have died and about a third of their habitat has been destroyed. Photos from the ground show koalas with singed fur, raw patches of burnt flesh, and blistered paws. Even if they are rescued and treated, sometimes their injuries are simply too extensive to survive. Wombats have also been hit hard – they don’t cope well with heat or stress, and panic at the smell of smoke. The small, stubby-legged marsupials can’t run very fast or far, and are largely at the mercy of the flames. Smaller mammals and reptiles can escape the blazes by burrowing underground or hiding in rocks – but afterward, there is no food or shelter left, only certain predators that are drawn to fire because they know it brings easy prey. Koalas and kangaroos are spread out across the country, so they’re not in danger of going extinct due to the blazes. But other animals that live in niche environments and have smaller populations may have been wiped out entirely; these include the eastern bristlebird, the mountain pygmy possum and the corroboree frog.  These animals’ recovery depends not only on their population size, but also on the condition of their habitat. For instance, plants grow slower in high-altitude alpine regions, meaning it could be a very long time before species are able to return.
2. The word “razed” in paragraph 1 is closest in meaning to _______

Read the following passage and choose the best answer (A, B, C, D):
It’s probably the most painstaking, heart wrenching, and stress inducing test of dedication a marriage can face. But the reward at the end is pretty sweet. At the annual Wife Carrying World Championships in Sonkajärvi, Finland, male competitors race around a track hauling their female partners on their backs. Winner takes home his wife’s weight in beer. It’s no ordinary racetrack, either. Competitors must wade through a neck-deep pool of water, climb over hurdles, and run through pits of sand before crossing the finish line. While some participants don crazy costumes for the pre-race, the actual event is pretty straightlaced. Wives must weigh at least 49 kilograms (108 pounds). Any woman lighter than that is required to carry a heavy rucksack until she reaches this minimum. A participant who drops his wife will be penalized 15 seconds. But there is one catch: contestants don’t have to carry their own wives. A friend’s wife, stranger’s wife, or even a random grandmother will do – as long as she’s over 17. Contestants flock from 47 countries across the globe to show their stuff in this epic display of brute strength. This year, Finnish couple Taisto Miettinen and Kristiina Haapanen captured the title for the fourth consecutive year. The 46-year-old lawyer and his wife completed the 235-meter course in one minute and four seconds. Like any dedicated athlete, Miettinen reported that he’d been training for a while. “In last autumn, I started running in the track, one hundred, two hundred and four hundred meters,” Miettinen said in a post-race interview. He also practiced the course in ski boots to build leg strength. The competition, which began in 1992, is supposedly rooted in the legend of Ronkainen the Robber — a hardnosed gang leader who hazed potential members by making them lug sacks of grain or live pigs over a similar course. He and his comrades also made a habit of stealing women from neighboring villages as a nod to this practice, many men “steal” friends’ wives for the competition. If you want to compete but can’t make it to Finland, there’s a North American version of the contest held in October at Sunday River Resort in Maine. With 100-plus pounds of brewski on the line, you might want to tell your significant other to start shaping up.
1. Which of the following best serves as the title of the passage?

Read the following passage and choose the best answer (A, B, C, D):
When hosting an Olympic Games, a country has to take account of several considerations, among which the financial one is by far the most important. The costs of hosting the Olympics can (1) _______ tens of billions of dollars, and it is commonplace for budgets to double or even triple. In addition to the direct costs of hosting the Games (the opening and closing ceremonies, athletes’ village, security, etc.), cities often must build expensive new venues (2) _______ lesser-known sports. Once constructed, sports venues often incur additional maintenance costs long after the Games have ended. While costs are the (3) _______ concern for a host city, there are other factors to consider. For one, an Olympic host city may receive substantial revenue from ticket sales, tourist spending, corporate sponsorship, and television rights. Cities such as Los Angeles (1984) and Seoul (1988) actually made a large profit from the Games they hosted. (4) _______, hosting the Olympic Games confers prestige on a host city and country, which can lead to increased trade and tourism. The Olympics are also an opportunity to invest in projects (5) _______ improve the city’s quality of life, such as new transportation systems

Read the following passage and choose the best answer (A, B, C, D):
When it comes to cooking, boomers cook one, Generation X cooks another way and the beat generation does things that must be recorded now, because once they have passed out of fashion, they will never be discovered again. They have weird skills, derived from scarcity in their early years. They keep their spices in brown glass because they last longer. For practical purposes, this means everything is in an old Calpol bottle with “sumac” scrawled over it. Some of them are, and will fish an empty packet of sugar out of the bin, shake a quarter-teaspoon of sugar from it and put it back. They can often make a cake by eye, without weighing anything, which I find incredible, and they know what to do with leaf gelatine, which is great until it isn’t. My mother once made avocado in jelly and then said: “I don’t know, the proportions may have been slightly off.” I said, recklessly: “Don’t worry – I’m sure I’ll choke it down,” but when it came to it, my cutlery bounced off it, like a prank played on a very hungry person in a cartoon. The beat generation canon is Meat at Any Price and Fish at Any and anything to do with mince. The descent of mince from a sacred food to a bolognese-only staple is one of the great mysteries of progress, because it is delicious even when you don’t shove a load of tomato in it. But you can’t just shove cheap meat in a pan and watch while it sweats out watery grey juice. This seems to be something that only wartime generations understand. Hip parents in the 70s, or regular parents in the 80s, or quite trad parents in the 90s had a horror of overcooked carrots and waterlogged cabbage. The very smell of cooked vegetables evoked for them every bad memory of British cuisine, before anchovies and Italians and radicchio arrived, when all dinner was a school dinner. So they would all just tease their vegetables with a hint of boiling water, before turning them out, still basically a salad, only a bit warmer. Then you, their offspring, would leave home, and accidentally encounter a vegetable that had been cooked, and realise how delicious it was and now you probably overcook your vegetables a bit, and your children will go the other way.  
5. According to paragraph 4, what can be generalised about the progress of vegetables cooking?

Read the following passage and choose the best answer (A, B, C, D):
At its narrowest point, Vietnam is only 30 miles (48 kilometers) wide. Two of Vietnam’s largest rivers, the Mekong in the south and the Red in the north, end at the South China Sea in huge swampy plains called (1)________ . These regions are home to most of the country’s people and provide (2)________ ground to grow rice and many other crops. Vietnam’s mountainous terrain, forests, wetlands, and long coastline contain many different habitats that support a great (3)________ of wildlife. Some 270 types of mammals, 180 reptiles, 80 amphibians, and 800 bird species reside in Vietnam Many rare and unusual animals live in Vietnam, (4)________ giant catfish, Indochinese tigers, Saola antelopes, and Sumatran rhinos. The government has set up 30 parks and reserves to protect its animals, but their survival is (5) ________doubt because much of their habitat has been cleared for lumber or to grow crops

Read the following passage and choose the best answer (A, B, C, D):
It’s probably the most painstaking, heart wrenching, and stress inducing test of dedication a marriage can face. But the reward at the end is pretty sweet. At the annual Wife Carrying World Championships in Sonkajärvi, Finland, male competitors race around a track hauling their female partners on their backs. Winner takes home his wife’s weight in beer. It’s no ordinary racetrack, either. Competitors must wade through a neck-deep pool of water, climb over hurdles, and run through pits of sand before crossing the finish line. While some participants don crazy costumes for the pre-race, the actual event is pretty straightlaced. Wives must weigh at least 49 kilograms (108 pounds). Any woman lighter than that is required to carry a heavy rucksack until she reaches this minimum. A participant who drops his wife will be penalized 15 seconds. But there is one catch: contestants don’t have to carry their own wives. A friend’s wife, stranger’s wife, or even a random grandmother will do – as long as she’s over 17. Contestants flock from 47 countries across the globe to show their stuff in this epic display of brute strength. This year, Finnish couple Taisto Miettinen and Kristiina Haapanen captured the title for the fourth consecutive year. The 46-year-old lawyer and his wife completed the 235-meter course in one minute and four seconds. Like any dedicated athlete, Miettinen reported that he’d been training for a while. “In last autumn, I started running in the track, one hundred, two hundred and four hundred meters,” Miettinen said in a post-race interview. He also practiced the course in ski boots to build leg strength. The competition, which began in 1992, is supposedly rooted in the legend of Ronkainen the Robber — a hardnosed gang leader who hazed potential members by making them lug sacks of grain or live pigs over a similar course. He and his comrades also made a habit of stealing women from neighboring villages as a nod to this practice, many men “steal” friends’ wives for the competition. If you want to compete but can’t make it to Finland, there’s a North American version of the contest held in October at Sunday River Resort in Maine. With 100-plus pounds of brewski on the line, you might want to tell your significant other to start shaping up.
7. Which of the following is NOT true according to the passage?

Read the following passage and choose the best answer (A, B, C, D):
Commentary from researchers in the College of Pharmacy at The University of Texas at Austin in the journal Science provide new findings in alcohol use disorder (AUD) research The article, “Compelled to drink: Why some cannot stop,” considers recent findings by researchers Siciliano et al. that discovered individual differences in the activity of neurons in a frontal cortex to brain stem circuit that predicts the later escalation of alcohol drinking to compulsive intake in a mouse model. “These researchers not only defined a new brain circuit involved in compulsive drinking, but showed individual differences at the level of electrical activity in the neurons that comprise this circuit,” Nixon said. “The individual differences in electrical activity predicted which mice would go on to drink compulsively after a binge-like drinking episode despite drinking the same amount of alcohol during that episode.” The research group previously found that this circuit is important for responses to aversive events, and they have now asked why aversive outcomes don’t deter everyone from drinking alcohol. These new findings point to a neurological explanation for why only some mice continue to drink alcohol even when it comes with negative consequences. “They found these differences in circuit activity before mice developed compulsive drinking behavior,” Mangieri said. “In other words, some mice had a biological predisposition that made them susceptible to developing alcohol drinking behaviors that are similar to humans with AUD.” The researchers said the work has important implications. It has potential as a biomarker of propensity to develop severe AUD based on electrical activity. Also, the discovery of this circuit’s role in compulsive drinking suggests that there may be novel pharmacological targets that could be identified and developed for the treatment of AUDs
2. According to paragraph 1, what is NOT included in the discoveries of the researchers?

Read the following passage and choose the best answer (A, B, C, D)
Amy Johnson was born in 1903 and grew up in Hull, England. The pioneering British aviator is one of the inspiring female figurehead of the 20th century. After university, Amy got a badly-paid (1)_____managed to save enough money to take flying lessons. She went on to qualify as a pilot, (2)___ receiving her license in 1929. In 1930, (3)_______only flown for seventy-five hours, she persuaded a rich businessperson to give her money to buy a plane, and set off alone for Darwin, Australia, in the hope of breaking the record for flying solo from England to Australia in fourteen days. Amy was the first woman to make this flight, (4) _______ took her nineteen days. She failed to breathe record, but was welcomed home as a hero. Over the next ten years, Amy made many record-breaking flights. During these years, she was admired for her skill and courage, and she is still fondly remembered as Britain’s first “Queen of the Air”. She is also remembered in many ways, one of which is the British Women Pilot’s Association award - a scholarship to help outstanding women pilots (5)______their careers

Read the following passage and choose the best answer (A, B, C, D):
A group of Tri-City residents and volunteers from BC Housing gathered at a  neglected therapeutic garden on the old Riverview Hospital grounds last weekend to breathe life into a green space. First planted by psychiatric nurse Art Finnie in the 1950s after he was injured on the job, Finnie’s Garden grew into one of the first experiments in horticultural  therapy. As Lauren English, director of land development for Riverview, put it, gardening as therapy was a revolutionary practice. “He understood the value of nature and how therapeutic it was before it became the rage — to find peace and to find solace and to find comfort,” added MLA Selina Robinson, who attended last Saturday’s event.  At that time, Riverview Hospital was the largest psychiatric hospital in British Columbia, with more than 5,000 patients on site. And Finnie’s was more than a garden. Beyond the rows of corn, flowers and a fish pond, residents could lounge in a picnic area or curve bowls across their own bowling green. But while the idea of Finnie’s Garden was to have a place of gathering that residents created themselves, they weren’t the first ones to make themselves at home.  Archeologists, including one on site last weekend, have found evidence Indigenous people occupied the area for thousands of years. Today, the Kwikwetlem First Nation maintains a land claim over the Riverview lands, and in its language, the area is known as Smu’q wa ala," or “Place of the Great Blue Heron”. "They found fire-altered rocks, they found boiling rocks, they found arrowheads, they found tools," said English, under the watchful eye of the group’s archeologist. “It’s not just colonial history, it’s the precontact history that goes back thousands of years.” Today, while many of the former hospital’s buildings lay in disrepair, 184 people still call the hilltop facility home, and one day in the near future, perhaps, they’ll get to use it again on their road to recovery. The event comes in a year when Treefest was cancelled because of a lack of organizers, and while the renewed work at Finnie’s Garden isn’t meant to replace Treefest, it does offer a outlet for green-thumbs without a patch of dirt.  A final community gardening event at Finnie’s Garden will likely take place in October. By removing weeds, invasive plants and adding mulch, the group plans to have the area ready to plant next spring. 
5. According to paragraph 2 and 3, who is the people implied in the line “…they weren’t the first ones to make themselves at home.”?

Find mistake:
We’re sure that it was not until fifth year that he could speak Chinese well.

Choose the best answer:
Minh had a terrible headache.________ , he went to school.

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 following questions:
We have all had bad experiences with restaurants, stores, or hotels. Maybe you have gone to a restaurant that served terrible food. Perhaps you have gone to a store that had high prices or bad service. Or maybe you have booked a hotel and found out later that the room was nothing like the advertisement.
These days, we have a better chance of preventing these unpleasant surprises. We can do this by using apps. “App” is short for “application”. An app is a computer programme on a smartphone. You can use apps to do almost anything. Apps can help you play games, get directions, talk to friends, and so on.
If f you want to find information about a store or a hotel, you can use a review app. Review apps help us evaluate services and products before we hand over our money. The idea is very simple. After you go to a restaurant or stay in a hotel, you can post a review with one of your apps. You can say anything you want. If you like a hotel you stayed in, you can tell people that it was wonderful. If you think that the food in a certain restaurant was bad, then you tell people not to eat there. Other people can use their apps to read your reviews.
Plenty of people prefer not to use these review apps. Many of these people prefer to go out and decide for themselves whether or not a service is good. However, review apps are getting more and more popular every day. Some apps are for specific services. For example, Tripadvisor focuses on travel, and Goodreads focuses on books. There are also other, larger apps that provide information for just about every service that you can think of. 5

The word “it” in paragraph 3 refers to     .

Read the following passage and choose the best answer (A, B, C, D):
Digital learning is replacing traditional educational methods more and more each day. With (1) ____ rapidly classrooms are changing, it is best to forget methods you may remember from when you were in school and start thinking about newer teaching and learning techniques based on digital learning tools and technologies. The inclusion of digital learning in the classrooms can (2) ____ from simply using tablets instead of paper (3) ____ using elaborate software programs and equipment as opposed to the simple pen. This could entail using sites, services, programs, teaching tools, and technologies like study aids built for at-home (4) ____. Even social networks and communications platforms can be used to create and manage digital assignments and agendas. (5) ____ of how much technology is integrated into the classroom, digital learning has come to play a crucial role in education. It empowers students by getting them to be more interested in learning and expanding their horizons

Read the following passage and choose the best answer (A, B, C, D):
Myriad occupational schools in the central coastal city of Da Nang have received just a small number of applications over the past few years. “Last year we only had 142 new students, but the number of new enrollees is 50 this school year,” Truong Van Hung, rector of the Duc Tri Da Nang Vocational College, said, adding the school has set a target of recruiting 1,200 students for the 2014-2015 academic year. “Closing the school is just a matter of time,” he said. Similarly, the Viet A Vocational School in Hai Chau District in Da Nang has not recruited any new enrollee for over one year given the absence of job opportunities for its graduates. “We do not want to enroll because we cannot help students land jobs after they graduate,” a leader of Viet A said. “We will only admit new students when we can have a partnership with companies who can employ our students after they finish their studies.” Elsewhere, vocational schools in the southern province of Dong Nai are ‘frozen’. The Dong Nai Information Technology-Telecommunications Vocational School in the academic year of 2013-2014 enrolled only 82 students compared with a target of 1,000; the Nhon Trach Industrial Engineering Vocational School only had 200 out of its goal of 600 students for the school year; the 26-3 Vocational School received 150 students while they set a target of 250; and the South-Eastern Electromechanical Vocational School only recruited 300 out of the 500 students they planned to admit. The situation means that equipment for training programs at those schools has been left unused and covered with rust. Local experts have commented that if the lack of students persists, vocational schools are at high risk of being closed, sooner or later. 
5. The word “persists” in paragraph 4 is closest in meaning to ______

Stop Pollution Now!

Pollution is a really big problem on our planet and it must (1) …. immediately. It must be stopped before our planet goes extinct. There are three main reasons, in my opinion, why pollution should be stopped.

The first reason why we should stop pollution is that pollution is destroying the environment we live in. Carbon dioxide is a big (2) ……….. to pollution. Carbon dioxide affects our climate in many different ways. The way it works is that certain ‘greenhouse gases’ can't escape (3) …….. our atmosphere because they get trapped. The second reason why we should stop pollution is that it also has an influence on us – (4) ……….. Pollution also influences human life and that is a big problem. According to the World Health Organization, indoor air pollution from the burning of coal or biomass fuels like wood risks lives of millions of people. Air pollution causes two million deaths per year, mostly from heart disease and respiratory disorders (5) …….. infections and lung cancer.

The third reason why we should stop pollution is that (6) …………. we do, we can live longer on this planet. If we don’t stop pollution and global warming, something really bad will happen (7) ….. us. Humans have destroyed the planet so quickly. We can live longer and extent our existence on this planet so that our children’s children can live in a planet without worries. In short, pollution must be stopped immediately. The earth is our only home and we must protect it and take care of it as much as we can. Pollution must be stopped before we (8) ………. our planet.

et.

(1) …......

Find mistake:
What their country desires is a long-term policy for investment in science and technological.

Choose the best answer:
If you don’t know how to spell a word, you ……… look it up in the dictionary.

Read the following passage and choose the best answer (A, B, C, D):
If you think you left the cliques behind in high school, think again. When it comes to  building friendships, men are more likely to return to their clique-y roots than women, according to a recent study published in the journal PLOS One. Researchers found that, in general, men seek to join all-male cliques, clubs or teams, while women prefer a more select, one-on-one relationship with a few close female friends. “Much of male friendship is about coalition building,” said Tamas David-Barett, lead author of the research paper, and member of the experimental psychology department at the University of Oxford.  After analyzing the profile pictures of nearly 112,000 Facebook users worldwide, David-Barett and his co-authors found that men were more likely to post a profile picture showing themselves with a large group of male friends. The study notes that such pictures are “arguably an essential element of the male-male coalition competition.” Conversely, women almost never posted a large group profile picture, but tended to display a photo with only one other female friend. As the paper explained, women “appear more often to focus their social capital on only one person at a time.”  So why are men and women different in the way they make friends? One hypothesis is the difference between the male and female brain. Typically, women tend to have a larger deep limbic system than their male counterparts. The limbic system is a network of nerves in the brain connected to instinct and mood. The limbic system controls basic emotions such as happiness and fear. Because this system tends to be larger in women, females are more in touch with their feelings and have an increased ability to connect individually with others.  According to the Wall Street Journal, other research indicates that females tend to build friendships off of emotional connections and are more apt to share intimate conversations. The male friendship, however, is established by doing things together, such as watching the game or hosting a barbecue. “Female friendships are characterized as more face-to-face. Women want to share and exchange,” said Irene Levine, a friendship expert. “They want to bond. Men, however, want to do things together. They want to go to spectator sports; they want to participate in sports together. They do things that are more side-by-side.” 
7. The word “They” in paragraph 4 refers to _____

Mark the letter A, B, C, or D on your answer sheet to indicate the undelined part that needs correction in each of the following questions:
These days, most people in Britain and the US do not wear very formal clothes. But sometimes it is important to wear the right thing.
Many British people don't think about clothes very much. They just like to be comfortable. When they go out to enjoy themselves, they can wear almost anything. At theatres, cinemas and concerts you can put on what you like from elegant suits and dresses to jeans and sweaters. Anything goes, as long as you look clean and tidy.

But in Britain, as well as in the US, men in offices usually wear suits and ties, and women wear dresses or skirts (not trousers). Doctors, lawyers and business people wear quite formal clothes. And in some hotels and restaurants men have to wear ties and women wear smart dresses.
In many years, Americans are more relaxed than British people, but they are more careful with their clothes. At home, or on holiday, most Americans wear informal or sporty clothes. But when they go out in the evening, they like to look elegant. In good hotels and restaurants, men have to wear jackets and ties, and women wear pretty clothes and smart hairstyles.
It is difficult to say exactly what people wear informal or formal in Britain and the US, because everyone is different. If you are not sure what to wear, watch what other people do and then do the same. You'll feel more relaxed if you don't look too different from everyone else.

The word “they” in paragraph 4 refers to     .