Problem: Given the question: Write a multi-choice question for the following article, with the given choices and answer: Article: Have you ever dreamed of visiting a planet in the Milky Way? While the trip sounds exciting, it would take years and years to reach the place that we are going to. So in the future, bedtime for astronauts may be more than a few hours of regular shut-eye. They would have to sleep for years. European researchers are now doing hibernation experiments. The study may help them understand whether humans could ever sleep through the years it would take for a space flight to distant planets. "If there was an effective technology, it could make deep-space travel come true," said Mark Ayer of the European Space Agency last month. What seems like science fiction is not completely impossible. Researchers have been able to use chemicals to put living cells into a sleep-like state where they don't age. They have now moved on to small, non-hibernating mammals like rats. The results will be out soon. A major challenge is the fact that cells can be very simple systems, but body organs are far more complex . "It's like moving from a simple Apple computer to a supercomputer," said Marco Biggiogera, a hibernation researcher at Italy's University of Pavia. Just like bears and frogs, the hibernation of human beings would cause a person's metabolism to lower so they would need less energy. Medical research, however, is just half of a space flight hibernation system. There is the challenge of designing a suitable protective place to live. Such a place would provide the proper environment for hibernation, such as the proper temperature. It would also have to monitor life functions and serve the physiological needs of the hibernator. According to Ayer, the six-person Human Outer Planets Exploration Mission to Jupiter's moon Callisto, could be an opportunity to use human hibernation. The mission aims to send six humans on a five-year flight to Callisto, where they will spend 30 days, in 2045. , . Options: A will be B has been planned for C is certain to be D may be Answer: D may be Question:
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The answer is:
The first try of the hibernation technology _ the six person Human Outer Planets Exploration Mission to Jupiter's moon Callisto.

Problem: Given the question: Write a multi-choice question for the following article, with the given choices and answer: Article: When you travel in Hong Kong,you must be careful of the traffic rules,because the traffic keeps to the left and it's different from that of the interior of China.Before crossing the street,you must look to the right and then to the left.If the traffic lights are red,the traffic must stop,people can go across the zebra line.If the traffic lights turn green,the traffic can go,and people mustn't cross the road. In the morning and in the evening,when people go to or come from work,the streets are very busy.The traffic is the most dangerous. When you go somewhere by bus in Hong Kong,you have to be careful,too.Always remember the traffic keeps to the left.Have a look first,or you may go the wrong way.In Hong Kong,there are a lot of big buses with two floors.You'd better sit on the second floor.From there you can watch the city very well.How interesting! Options: A dangerous B interesting C easy D safe Answer: A dangerous Question:
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The answer is:
It is _ to cross the streets in the morning and in the evening.

Problem: Given the question: Write a multi-choice question for the following article, with the given choices and answer: Article: An old lady went out shopping last Sunday. She came to a bank and saw a car near the door . A man got out of it and went into the bank . She looked into the car. The keys were in the lock. The old lady took the keys and followed the man into the bank. The man took a gun out of his pockets and said to the clerk , " Give me all the money . " But the old lady didn't see this. She went to the man and put the keys in his hand and said, " Young man , you're foolish . Never leave your keys in your car. Someone's going to steal it . " The man looked at the old woman for a few seconds. Then he looked at the clerk and then he took the keys and ran off the bank, got into his car and drove away quickly without any money . ,. Options: A went away B gave them to the policeman C took them home D returned to the young man Answer: D returned to the young man Question:
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The answer is:
The old lady took the keys and _ .