Write a multi-choice question for the following article, with the given choices and answer: Article: Air traffic controllers in the US have been advised to take 26-minute naps , after a series of accidents involving workers falling asleep. Now the National Transportation Safety Board (NTSB) is calling for "controlled naps" during nightshifts . NTSB member Mark Rosekind said that a 26-minute nap would improve performance by 34%. He believes that beyond the aviation industry, other professions, such as motoring and machinery, also carry obvious risks. But other experts doubt whether 26 minutes is the appropriate napping time. It's a bit too long and risks you falling into a deep sleep, says Jim Horne, director of the Sleep Research Council. He said, "A nap of about 15 minutes is best; once you get beyond 20 minutes, you risk a deep sleep and you can be much more tired when you wake up. Therefore, we suggest that a nap be combined with a cup of coffee so that you can enjoy an effective sleep before the caffeine takes effect in 20 minutes. However, this method only works on those who have had a poor night's sleep. If you haven't had a sleep the night before, this method won't be enough to make you fresh." Health writer, Linda Wasmer Andrews, also believes that 26 minutes is too long. She says a nap between 10 and 20 minutes is enough, and the timing of the nap is also important. Putting your head down too early means your body may not be ready to sleep yet, but a nap that is too late in a day might make it harder to fall asleep. Early afternoon is often the best time, between l pm to 3pm, when people experience a post-lunch decrease in energy. Options: A People who need a nap. B How long a nap should last. C When people should take a nap. D The reason why people need a nap. Answer: B How long a nap should last. Question:
----
Answer: What does the text mainly talk about?

Q: Write a multi-choice question for the following article, with the given choices and answer: Article: British potato farmers were angry and wanted the expression "couch potato" to be taken out of the dictionary because it harmed the vegetable's image. The British Potato Council wants the Oxford English Dictionary to replace the expression with the term "couch slouch", with protests being outside Parliament in London and the offices of Oxford University Press. Kathryn Race, head of marketing at the Council, which represents some 4,000 planters and processors, said the group had complained in writing to the OED but had yet to receive a response. "We are trying to get rid of the image that potatoes are bad for you," she said on Monday. "The potato has had its knocks in the past. Of course it is not the Oxford English Dictionary's fault but we want to use another term instead of "couch potato" because potatoes are naturally healthy." The OED says that "couch potato" began as American slang, meaning "a person who spends his or her leisure time sitting around, especially watching television or video tapes." The Potato Council says its campaign is backed by dieticians who say the vegetable is low in fat and high in vitamin C. Supporting the campaign, famous cook Antony Worrall Thompson said the vegetable was one of Britain's favorite foods. "Not only are they healthy, they are also convenient and yummy . Life without potato is like a sandwich without a filling," he said. John Simpson, chief editor of the Oxford English Dictionary, said the dictionary first included the term "couch potato" in 1993 and said "dictionaries just reflect the words that society uses." Simpson said words were never taken out of the full-length dictionary, which includes some 650,000 words in 20 volumes. But little-used words can be removed from the smaller dictionaries to make way for newer ones. "If society stops using words then they get taken out of the smaller dictionaries," he added. The first known recorded use of the expression "couch potato" was in an article in Los Angeles Times, in 1979, Simpson said. Nigel Evans, a member of... Options: A It is connected with unfavorable meaning. B Potato should be used in the expression. C It is borrowed from America English. D It refers to a kind of person. Answer: A It is connected with unfavorable meaning. Question:
A: What is wrong with the expression "couch potato" according to the farmers in this passage?

Write a multi-choice question for the following article, with the given choices and answer: Article: Have you seen Jurassic Park? In this film, scientists use DNA kept for tens of millions of years to clone dinosaurs. They find trouble, however, when they realize that the cloned creatures are smarter and more dangerous than expected. That's nothing more than a fiction. But could we really clone endangered animals? To date, the most successful attempt to do so was the cloning of a gaur, a rare ox-like animal from southeast Asia. Scientists used a cow to bring the cloned baby gaur, named Noah. Two days after birth, however, Noah died from a common bacterial infection. Other endangered species that may be cloned include the African bongo antelope , the Sumatran tiger, the cheetah , and the giant panda. Next, could we really clone extinct animals? In theory? Yes. To do this, you need a well-kept source of DNA from the extinct animals such as wool mammoth , Tasmanian tiger, or even dinosaur, and a closely related species, still living, which could serve as a surrogate mother. In reality? Probably not. On the one hand, it's not likely that extinct animals' DNA could survive undamaged for such a long time. Cloning extinct animals as wool mammoth, Tasmanian tiger, or dinosaur is much more difficult due to the lack of properly well-preserved DNA. On the other hand, for example, a gaur can have a cow as _ , definitely not a monkey. But what about an extinct animal as unique as the panda? What species could possibly serve as a surrogate mother? Cloning presents many exciting possibilities. However, even if extinct animals are brought back, they could not survive in today's world. Not only do most extinct animals have no habitat to live in, but the other plants and animals they depended on for food may also be gone as well. Options: A some extinct species may be cloned, but not survive B extinct species may be cloned and easily survive C a gaur can have a monkey as a surrogate mother D all the extinct species may be cloned Answer: A some extinct species may be cloned, but not survive Question:
----
Answer:
In the author's opinion, it is possible that _ .