Mark the letter A, B, C, or D to indicate the word or phrase that is CLOSEST in meaning to the underlined part in each of the following questions.

Halsey invited Suga to collaborate on the new record

Read the passage below carefully, and then choose the best answer:
The Power of Crowdsourcing
There is a famous old saying that when trying to solve a problem “two heads are better than one”. Yet until recently, businesses would often rely on one key person to get important tasks done. But thanks to a phenomenon called crowdsourcing, more and more companies are allowing their consumers to have their say when designing new products. The term “crowdsourcing” refers to the process of outsourcing jobs which were once done by a single person to a large group (or a crowd) of people. In the past, crowdsourcing wasn’t practical, as it was impossible to gather thousands of like-minded people together to share opinions. Now, thanks to the Internet, online forums, and social media, this isn’t a difficult task at all. There are many important applications for crowdsourcing in business. For example, if a small business was looking to develop a business logo, it might employ a single designer and hope for the best. However, with crowdsourcing, companies can specify some guidelines about their project, set a budget, and start a design contest online. Within hours, it will likely receive hundreds of designers sending them logos. In the end, they can choose the design they like best and the winner will get compensated. Crowdsourcing has other applications as well. A website called Duolingo is using crowdsourcing to translate documents into different languages. It offers free lessons to language learners. As part of their tests, users translate lines to test their knowledge. Then, a computer programme will analyze thousands of test results for consistency and arrange an accurate translation. Not everyone is sold on crowdsourcing, though. In many cases, it may be better to rely on the opinion of a few specialized professionals than information from a crowd. For instance, it makes more sense to trust the opinion of one top doctor than to take the advice of 1,000 random people regarding a health issue. Another criticism is the low wage that crowdworkers usually receive. Since crowdworkers are freelancers and not employees, they can be paid less than minimum wage. Whether you love or hate crowdsourcing, it appears to be here to stay. So before you make any financial judgements, consider following the crowd and give crowdsourcing a try.
7. Why might someone agree to translate a document for Duolingo?

Read the following passage and choose the best answer (A, B, C, D):
Mickey Mouse was not Walt Disney’s first successful cartoon creation, but he is certainly his famous one. It was on a cross-country train trip from New York to California in 1927 that Disney first drew the mouse with the big ears. Supposedly, he took his inspiration from the tame field mice that used to scamper into his old studio in Kansas City. No one is quite sure why he dressed the mouse in the now- familiar shorts with two buttons and gave him the yellow shoes. But we do know that Disney had intended to call him Mortimer until his wife Lillian intervened and christened him Mickey Mouse. Capitalizing on the interest in Charles Lindsborg, Disney planned Mickey’s debut in the short cartoon Plane Crazy, with Minnie as a co-star. In the third short cartoon, Steamboat Willie, Mickey was whistling and singing through the miracle of the modern soundtrack. By the 1930s Mickey’s image had circled the globe. He was a superstar at the height of his career. Although he has received a few minor changes throughout his lifetime, most notably the addition of white gloves and the alterations to achieve the rounder forms of a more childish body, he has remained true to his nature since those first cartoons. Mickey is appealing because he is nice. He may get into trouble, but he takes it on the chin with a grin. He is both good-natured and resourceful. Perhaps that was Disney’s own image of himself. Why else would he have insisted on doing Mickey’s voice in all the cartoons for twenty years? When interviewed, he would say: “There is a lot of the mouse in me.” And that mouse has remained one of the most pervasive images in American popular culture.
5. The word "appealing" in the third paragraph is closest in meaning to: 

Choose the best answer:
A: “Could you tell me where the grocery store is?” - B: “……….”

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:
Butterflies are among the most extensively studied insects - an estimated 90 percent of the world's species have scientific names. As a consequence, they are perhaps the best group of insects for examining patterns of terrestrial biotic diversity and distribution. Butterflies also have a favorable image with the general public. Hence, they are an excellent group for communicating information on science and conservation issues such as diversity.
Perhaps the aspect of butterfly diversity that has received the most attention over the past century is the striking difference in species richness between tropical and temperate regions.
For example, in 1875 one biologist pointed out the diversity of butterflies in the Amazon when he mentioned that about 700 species were found within an hour's walk, whereas the total number found on the British islands did not exceed 66, and the whole of Europe supported only 321. This early comparison of tropical and temperate butterfly richness has been well confirmed. A general theory of diversity would have to predict not only this difference between temperate and tropical zones, but also patterns within each region, and how these patterns vary among different animal and plant groups. However, for butterflies, variation of species richness within temperate or tropical regions, rather man between them, is poorly understood. Indeed, comparisons of numbers of species among the Amazon basin, tropical Asia, and Africa are still mostly "personal communication" citations, even for vertebrates, In other words, unlike comparison between temperate and tropical areas, these patterns are still in the documentation phase.
In documenting geographical variation in butterfly diversity, some arbitrary, practical decisions are made. Diversity, number of species, and species richness are used synonymously; little is known about the evenness of butterfly distribution. The New World butterflies make up the preponderance of examples because they are the most familiar species. It is hoped that by focusing on them, the errors generated by imperfect and incomplete taxonomy will be minimized.

Which of the following is NOT well understood by biologists?

 Her job was so_____ that she decided to quit it.

(259)_______

She said she _____.

(224)_____

Read the following passage and choose the best answer (A, B, C, D):
Aspirin's origins go back at least as early as 1758. In that year, Englishman Edward Stone noticed a distinctive bitter flvor in the bark of the willow tree. To Stone, this particular bark seem to have much in common with "Peruvian Bark", which had been used medicinally since the 1640s to bring down fevers and to treat malaria, stone decided to test the effectiveness of the willow bark. He obtained some, pulverized it into tiny pieces, and conducted experiments on its properties. His tests demonstrated that this pulverized willow bark was effective both in reducing high temperatures and in relieving aches and pains. In 1763, stone presented his tiding to the British Royal Society. Several decades later, further studies on the medicinal value of the willow bark were being conducted by two Italian scientists. These chemists, Brugnatelli and Fontana, determined that the active chemical that was responsible for the medicinal characteristics in the willow bark was the chemical salicin, which is the active ingredient of today's aspirin. The name "aspirin" is the trade name of the drug based on the chemical salicin, properly known as acetylsalicylic acid.The trade name "aspirin" was invented for the drug in the 1890s by the Bayer Drug Company in Germany. The fist bottles of aspirin actually went on sale to the publicjust prior to the turn of the century, in 1899.
2. It can be inferred from the passage that Peruvian Bark: 

Read the text and choose the best answer (A, B, C or D) to each of the questions.
I was brought up in a very ordinary but very happy home with one elder sister, my mother and my father. The great love of my life since I was a small girl was writing, which only family thought was surprising because they didn't consider themselves educated people. I wasn't surprised though because my parents were great readers which is my idea of being educated. Anyway, I trained to be a nurse but whenever I had free time I wrote: poems, short stories, I even once wrote a novel called 'The Pleasure Principle' but I didn't feel comfortable writing longer pieces and I soon went back to my poetry. 
Then the strangest thing happened. I had my twenty-first birthday just a few days before and I was feeling very much that I wanted to change things in my life. I'd been nursing a very old woman for several months in a private ward, she told me that although she had-lots of relatives, no one came to visit her. Anyway, when she died she left me an enormous sum of money, nearly three-quarters of a million pounds! Of course when the lawyer rang me up and told me I just laughed and thought that my friends were playing a joke on me. So I put down the phone and went in to tell my mother the joke. 
But it wasn't a joke! All of a sudden, I was a very rich woman. Well, the first thing was that I was determined that I wouldn't waste the money. Of course I wanted to do something for my family, but all my dad said was 'We're not leaving this house after all the work I've put into the garden!' My mother agreed so all I did was give them something towards a new car and a new greenhouse. My sister was working abroad at this time and when I wrote to tell her the news and offer her some money she said it was my money and that she knew I would use it sensibly. None of this really came as a surprise because they've always had a sensible attitude towards money. 
But this left me a fortune on my hands to spend! It soon became obvious to me that much as I loved nursing, I loved writing more and that's how I got started. I went to America and did a degree in creative writing. I had a wonderful time and learned a great deal, not from the lecturers necessarily but mainly from other hopeful writers on the course. All this was a decade ago and I've now had several volumes of poetry published. I now want to do something to help other young poets so I'm thinking of setting up a small publishing company which I'll call Grace Park Books after the wonderful old lady who helped me fulfill my life's ambition!

It can be inferred from the passage that ............

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

The Emergence of Megacities

The urban shift over time has led to the emergence of the megacity – a city with a population of 10 million or more. New York City and Tokyo were the first (21)______megacities, both (22)________an urban population of over 10 million by the 1950s. But today they are (23)_________alone in their size. In 2014, there were 28 megacties across the planet – from Sao Paulo, Brazil to Lagos, Nigeria and London, England to Shanghai, China – and all major global regions except Oceania are (24)_______with megacities.

Most of the megacities in recent years are located in Asia and Africa. In fact, it is where seven of wight newest megacities can be found and where 10 of the 12 (25)_________megacities in 2030 will be located. From 2010 to 2015, Kinshasa’s population grew (26)________   over 23 percent, and today over half of 11.6 million residents are under 22 years old. A (27)________of factors has led to this growth including migration from rural areas, high fertility rates, and widening of the city’s boundaries. The population is (28)________almost all support structure in the city (29)_______the threat of food shortages, traffic (30)__________, and insufficient education facilities have become an obvious reality.

Question 23: .............

Choose the best answer:
The telephone was_________ by Alexander Bell.

Choose the best answer:
They _________ in that house for several months.

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 does Tom’s brother do?

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:
An air pollutnt is defined as a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetation, or materials adversely. Air pollution requires a very flexible definition that permits continuous change. When the first air pollution laws were established in England in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled – a far cry from the extensive list of harmful subtances known today. As technology has developed and knowledge of the health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions.
Many of the more important air pollutants, such as sulfur oxides, carbon monoxide, and notrigen oxides, are found in nature. As the Earth developed, the concentration of these pollutants was altered by various chemical reactions; they became components in biogeochemical cycles. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil. On a global basis, nature’s output of these compounds dwarfs that resulting from human activities.
However, human production usually occurs in a localized area, such as as city. In such a region, human output may be dominant and may temporarily overload the natural purification scheme of the cycles. The result is an increased concentration of noxious chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a subtance to be a pollutant; in fact, the numerial value tells us little until we know how much of an increase this represents over ther concentration that would occur naturally in the area. For example, sulfur dioxide has detectable health effects at 0.08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however, has a natural level of 0.1 ppm and is not usually a pollutant until its level reaches about 15 ppm.

What does the passage mainly discuss?

Choose the best answer:
We can eat at home or, ________ you prefer, we can go to a restaurant.

Choose the best answer:
Let’s/ hang/ clock/ the wall/ left/ the picture.

Choose the best answer:
The earth............... round the sun.

Choose the best answer:
Many people go to the pagoda to ............... for a happy year for themselves and their family.

The ability to conduct electricity is one of the key properties of a metal. Other solid material such as silicon can conduct electricity but only effectively at certain temperatures. Also, some substances such as salt (sodium chloride) can conduct when molten or when dissolved in water. The ability of metals to conduct electricity is due to how their atoms bond together. In order to bond together the metal atoms lose at least one of their outermost electrons. This leaves the metal atoms with a positive charge and they are now strictly ions. The lost electrons are free to move in what are known as a sea of electrons. Since the electrons are negatively charged they attract the ions and this is what keeps the structure together.

An electric current is a flow of charge and since the electrons in the sea of electrons are free to move they can be made to flow in one direction when a source of electrical energy such as a battery is connected to the metal. Hence we have an electric current flowing through the wire, and this is what makes metals such good conductors of electricity. The only other common solid conducting material that pencil users are likely to encounter is graphite (what the 'lead' of a pencil is made from). Graphite is a form of carbon and again the carbon atoms bond in such a way that there is a sea of electrons that can be made to flow as an electric current. Likewise, if we have an ionic substance like salt we can make the electrically charged ions flow to create a current but only when those ions are free to move, either when the substance is a liquid or dissolved in water. In its solid state an ionic substance like salt cannot conduct electricity as its charged ions cannot flow.

Electrical insulators are substances that cannot conduct electricity well either, because they contain no charged particles or any charged particles they might contain do not flow easily. Water itself is a poor conductor or electricity as it does not contain a significant amount of fully charged particles (the ends of a water molecule are partly charged but overall the molecule is neutral). However, most water we encounter does contain dissolved charged particles, so it will be more conductive than pure water. Many of the problems that occur when touching electrical devices with wet hands result from the ever-present salt that is left on our skin through perspiration and it dissolves in the water to make it more conductive.

The word "outermost” in paragraph 1 mostly means________.

Choose the best answer:
If the sun shines, we ___________ to the town.

Read the following passage and choose the best answer (A, B, C, D):
Glenbrook South (GBS) High School is in a suburb of Chicago, lllinois, in the United States. It is an award-winning school with a highly competent teaching staff. It has over 400 Asian Pacific American students-over 17 percent of the students in the school. Of these, the majority are Korean American. This is very unusual in a state where Korean Americans are less than 1 percent of the population. The interactions of the Korean American students at GBS were the subject of an article in Asian Week magazine. Different Korean American students react differently to being in a high school where most students are white. Professor Pyong Gap Min, an expert on Korean life in America, believes that Korean Americans in this situation can sometimes feel inhibited or ashamed of their Korean identity. Asian Week interviewed a number of GBS students, and each had a different attitude. Eighteen-year-old Alice said that she used to spend time only with Korean American friends. Although she felt secure with those friends, she found herself motivated to form closer relationships with non-Koreans, too. She said that she felt she was missing out on new experiences and challenges. Seventeen-year-old John moved in the opposite direction. In junior high school, most of John's friends were white. After coming to GBS, his sense of his Korean American identity was restored, and he decided to have mainly Korean American friends. He feels that he and his Korean American friends understand each other better. For example, they understand about severe parental pressures to succeed at school; John felt his white friends couldn't really understand. Sixteen-year-old Paul has some Korean American friends, but he says he spends most of his time with his white friends. He is often the only Asian American in the group, but he doesn't mind. What Paul likes about the white culture is that he can be more radical - he can be as loud and funny as he wants to be. He says he doesn't see as much of that among the Asian students. Without belittling the importance of what these students had to say, it's important to remember that their opinions at this phase of their lives are bound to change as they grow into adulthood. But these honest opinions can help US better understand issues of cultural relations, and their honesty might help Americans from different cultural groups to get along better in the future. 
6. The word "they" in paragraph 3 refers to: