TASK DEFINITION: In this task, you're given an article, a question which often contains a blank and four options (associated with "A", "B", "C", "D"). Your task is to find the correct answer (from the given options) for the question from the given article and return one of the options from "A", "B", "C", and "D". Do not generate anything else apart from one of the following characters: "A", "B", "C", "D". There is only one correct answer for each question.
PROBLEM: Article: A terrible competition is going on in England, with billions of dollars and hundreds of lives at risk. OK, that's not true. But competitors from around the world gathered on Thursday for the annual competition to compete for the world's biggest person who tells lies. Each participant is given up to five minutes to make up the best _ in the contest, which was founded in honor of 19th-century Bridge Inn landlord Will Ritson, who was reportedly famous for his lies. Competitors gather at the Bridge Inn every year for the competition, a small pub in northwestern England. Anyone but lawyers and politicians can take part in the competition. A study found that nearly all lies are detectable through visible facial muscle reactions in the person telling a lie. "Thus, while interpersonal cheat often is highly successful, signs of hidden emotional states are communicated clearly to the informed observer," the study concluded. A churchman of Carlisle reportedly holds what may be the greatest lie of all time in the competition, simply stating, "I have never told a lie in my life." In 2003, Abrie Krueger from South Africa became the first one to win the competition. In 2006, comedian Sue Perkins became the first female to win the competition, telling a tale about people riding camels to work as a result of climate change.
Question: Why does the author tell a lie at the beginning of the passage?
Options: (A) He likes telling lies. (B) He intends to talk about a contest. (C) Lies can be detected by someone. (D) Nearly everyone has told lies.

SOLUTION: B

PROBLEM: Article: Ever tried taking smart drugs to perform better in exams? They certainly work. Before last summer's exam, a few of my mates, merely out of curiosity, took a considerable amount of Modafinil, a drug normally used for narcolepsy . Guess what? While I was feeling sleepy, bored by revision, my mates were more focused. Modafinil is a smart drug that gives a user a feeling of staying awake for hours. It also sharpens the mind, improves memory and helps problem-solving. But it does more than just keeping you awake. It disturbs your mental system, making you desperate to do what you are doing. You just don't want to do anything else but revise all the time non-stop. A recent study discovers that healthy people use smart drugs, like Modafinil, to get down to and complete tasks they have been putting off, because these tasks seem more enjoyable when taking these drugs. This might sound like what a stressed student desires. However, the pills have a range of side-effects. "At present no evidence shows that these drugs are safe in healthy people," as a medical expert puts it, "Ordering online, though easy, is a dangerous way to obtain drugs. You never know what you're actually purchasing. " In my experience, Modafinil changes people's behaviour too. Over those weeks my friends became different people--in turn aggressive, cold. Even eating became "a waste of time" and so did conversation. A BBC survey found that of those who had tried smart drugs before, 92% would do so again. My friends say they'd happily do so without considering the practice a form of cheating. I admit I was curious--but not enough to try it. Seeing the strange behaviour of other users, I feel a little bit upset and scary. Modafinil may promise to change your grades, but it might also change the way you act. Don't say you haven't been warned!
Question: According to the author, his mates took Modafinil for the purpose of _ .
Options: (A) escaping from reality (B) getting better exam results (C) curing their narcolepsy (D) leading an active life

SOLUTION: B

PROBLEM: Article: "Hey, little boy, will you support me when I'm getting old?" Wang Wenshan, 35, asked his newborn baby as he picked him up at home. The Chinese tradition of raising sons to support parents in their old age has been weakened by the rapidly growing economy and improving standard of living. As is the case with more and more developed countries, China faces an aging society. People are living longer and having fewer children. Therefore, many Chinese families are falling into a 4-2-1 family pattern: a couple raises one child and supports four elderly parents. But few realize that a problem is likely to happen ahead. The aging of the population is a trend that now affects a growing number of countries. Not long ago, the Information Office of the State Council, China's cabinet, issued a white paper on measures China is taking to help its elderly population. The paper said China's population entered the aging period at the end of the 20thcentury and the proportion of people aged 60 and above accounted for over 10 percent of the entire population. By the end of 2005, China had nearly 144 million people over 60, accounting for 11 percent of population, according to the white paper. An expanding aged population _ means that many issues must be settled, as the problem concerns every aspect of society. It puts more pressure on each family, causing disturbing economic consequences and serious social problems. It also challenges the labor force supply and the pension system. "I used to think that it's not an issue for me to provide for the aged," said Wang, whose parents and parents-in-law all enjoy pensions and medical insurance. But last year Wang's father suffered a serious illness and afterward Wang began to feel the pressure on his shoulders. After his father recovered, Wang opened bank accounts for each parent and deposited some money into the account every month to prepare for future uncertainties. In addition, he has to save money every month to provide for his son's future education. "I'm now breaking my back working to support my family: saving pensions for the parents, my son's education funds, and living costs." Wang also bought some commercial old-age insurance for himself. "We have to take precautions before it is too late, and many of my colleagues share the same view," he said.
Question: Which of the following is not caused by an aging society?
Options: (A) Social problem (B) The problem of the pension system (C) More pressure on the family (D) Unemployment

SOLUTION:
D