instruction:
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.
question:
Article: With fifteen years prefix = st1 /Britainand other nations should be well on with the building of huge industrial complexes for the recycling of waste . The word rubbish could lose its meaning because everything which goes into the dumps would be made into something useful . Even the most dangerous and unpleasant wastes would provide energy if nothing else . The latest project is to take a city of around half a million inhabitants and discover exactly what raw materials go into it and what go out . The aim is to find out how much of these raw materials could be provided if a plant for recycling waste were built just outside the city . This plant would recycle not only metal such as steel , lead and copper , but also paper and rubber as well . Another new project is being set up to discover the best ways of sorting and separating the rubbish . When this project is complete , the rubbish will be processed like this : First , it will pass through sharp metal bars which will tear open the plastic bags in which rubbish is usually packed ; then it will pass through a powerful fan to separate the lightest elements from the heavy solids ; after that founders and rollers will break up everything that can be broken . Finally , the rubbish will pass under magnets , which will remove the bits of iron and steel ; the rubber and plastic will then be sorted out in the final stage . The first full-scale giant recycling plants are perhaps fifteen years away . Indeed , with the growing cost of transporting rubbish to more distant dumps , some big cities will be forced to build their own recycling plants before long .
Question: The phrase "be well on with ......" (Para .1) most probably means_.
Options: (A) have completed what was started (B) get ready to start (C) have achieved a great deal in (D) put an end to
answer:
C

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Article: Social media is one of the fastest-growing industries in today's world. A study conducted by the US think tank Pew Research Center showed that 92 percent of teenagers go online daily. The wide spread of social media has changed nearly all parts of teenagers' lives. Changing relationships High school student Elly Cooper from Illinois said social media often reduces face-to-face communication. "It makes in-person relationships harder because people give attention to their phones instead of their boyfriends or girlfriends," Cooper said. There's also a greater possibility of things getting lost in translation over social media. "If half of your relationship is over social media, you don't really know how the other person is reacting," Sienna Schulte, a junior student from Illinois, said. Yet, some people believe social media has made it easier to start relationships with anyone from anywhere. Beth Kaplan from Illinois met her long-distance friend through social media. He currently lives in Scotland, but they're still able to frequently communicate with one another. "I can feel close to someone that I'm talking to via FaceTime," Kaplan said. Wanting to be "liked" The rise of social media has changed the way teenagers see themselves. The 19-year-old Essena O'Neill announced on the social networking service Instagram that she was quitting social media because it made her obsessed with appearing perfect online. Negative comments also can do great damage to a teenager's self-esteem . In particular, anonymous social media apps such as Yik Yak may provide opportunities for cyber bullying . The app allows users within 5 miles (8 km) to create and add comments to everything. Teenagers who get negative comments on these sites can't help but feel hurt. Opening new doors However, Armin Korsos, a student from Illinois, takes advantage of the comments he receives over social media to improve his videos on the social networking site Youtube. "Social media can help people show themselves and their talents to the world in a way that was never possible before," Korsos said. But Korsos recognizes that social media has become a distraction . "Social media, though it helps people connect with their friends and stay updated, is not all necessary."
Question: What is the article mainly about?
Options: (A) The major problems with social media. (B) The impact of social media on teenagers. (C) How teenagers benefit from social media. (D) Why social media appeals so much to teenagers.
answer:
B

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Article: Japan' s nuclear crisis is also causing concerns in China. Worried shoppers rushed to stores and supermarkets in the country for salt, with the belief that it might protect them from potential nuclear radiation spreading from Japan. Many rushed to buy to store as much iodized salt as possible because of the rumor that iodized salt could help prevent radiation poisoning spreading from Japan' s Fukushima Daiichi power plant. Consumers also worried that the nuclear plumes might spread to China by air and sea, polluting food sources, including salt taken from the sea. The wave of panic buying spread quickly across the country, driving up salt prices by five to ten fold in some cities. Even regions rich in salt production, like Jiangxi Province,faced sudden shortages. The government took measures to guarantee enough supply and to stabilize the market. It also dismissed the nuclear rumors, saying the nuclear fallout was unlikely to reach the country, and that salt did not help to prevent radiation poisoning. Local authorities have stepped in to stabilize the market, too. As well, state-owned salt companies have been urged to increase their supply. Facing expanding market demand, distribution centers have taken extra measures to ensure they are well-prepared. Wang Yun, the General Manager of Beijing Salt Industry Corporation, said, "Our storage reserves can guarantee a two-month supply for the Beijing market."
Question: People made panic purchases of salt for the reasons EXCEPT _ .
Options: (A) salt might protect them from potential nuclear radiation (B) nuclear radiation might pollute food sources (C) nuclear radiation might pollute salt taken from the sea (D) there would be a shortage of salt on the market
answer:
D