Problem: Given the question: Write a multi-choice question for the following article: Article: Little Mike's grandma died weeks ago. He missed her very much. One afternoon Mike went to the city park where his grandma used to go. There he saw an old lady. She looked very kind. She was sitting there, watching pigeons . Little Mike went up and sat next to her. He took out his food and drinks and gave some to her. She smiled at him. Her smile was so sweet that Mike wanted to see it again. She seemed to understand him, so once again she smiled. Mike was very glad. They sat there all the afternoon, eating and talking. As it got dark, Mike got up to leave. Before he left, he hugged the old lady and she gave him her sweetest smile. When Mike got home, his mother was surprised by the look of joy on his face. "I met a granny in the park. Her smile was like the kind of smile I had seen on Grandma's face." The old lady also returned to her home happily. She told her son that she had food and drinks with a little boy. "He was as lovely as Brittany," she said. Her son was surprised, because he had never seen her so happy since Brittany, her grandson, died weeks ago. .
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Question: The old lady's smile showed that _ .Options:A she had hoped to meet the boyB she wanted to get some drinksC she missed her grandsonD she liked the little boyAnswer:D

Problem: Given the question: Write a multi-choice question for the following article: Article: "Listen carefully to what I say," the time traveler said, "I shall tell you something that you will not agree." "Why will we not agree?" I asked. "Because the science and mathematics you know are not correct," he said. "You believe there are only three dimensions -length, breadth and thickness." "There is nothing to argue with that, " the youngest member of our little group said. "Exactly!" the time traveler answered, "But there is also a fourth dimension - time." "We all know about time, " another member of the group said. "Time passed." "I do not agree," the time traveler said, "Length, breadth and thickness do not pass. They stay in the same place in space. We move about them. I can prove that time is the same. It does not pass. We move in time the same way that we move in breadth, length and thickness." None of us believed the time traveler, and we argued with him for many hours. "If we could travel back in time," the scientist said, "We could do things to change the future." "If we could travel forward in time," the doctor said, "we could do things that change our present." The time traveler smiled, "It is clear," he said, "that there is only one way I can show you that I am right. We must do an experiment. Please wait here." He left the room and soon returned, carrying what looked like a clock. "This is a model of a time machine. It took me two years to make it," the time traveler said. "I want all of you to understand that when I start the machine, it will immediately travel in time and disappear from the present." He turned to the youngest of all. "Give me your hand," he said. The young man put out his hand. The time traveler took it and placed it on the machine. Immediately, there was a sudden wind, and the little machine disappeared. I was certain this was not a trick, but the doctor was not so sure. "Are you asking us to believe," he said, "that the machine is now in a different time?" "Certainly! In my laboratory, a full-size machine is almost complete. As soon as it is complete, I shall...
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Question: How many dimensions did the time traveler say there are?Options:A Two.B Three.C Four.D Five.Answer:C

Problem: Given the question: Write a multi-choice question for the following article: Article: You may have known several kinds of police --- traffic police, fire police and street police. But have you ever heard of energy-saving policeman? A group of 22 energy-saving policemen went to work last week in Beijing. They go around the city to see the use of energy in hotels, office buildings, shopping centers and other public places. One of their aims is to make sure that these places have set their air conditioning no cooler than 26degC. They also set up a special phone line so that people can tell them which buildings fail to follow the rule. "If everyone sets their air conditioning at 26degC, Beijing will save 400 million kilowatthour of electricity in one summer. That's one-third of all the usages of the city in the season," said a TV advertisement. Other Chinese cities, like Wuhan in Hubei Province and Yangzhou in Jiansu Province, are going to follow Beijing's steps in setting up a similar police team. As one of the fastest developing countries, China is using a lot of energy. This has a great effect on the country's environment and limited energy. From 1986 to 2005, the country experienced 20 warm winters continuously . Numbers show that Chinese cities have to spend billions of yuan solving environmental problems every year. At the beginning of this month, China made its first action plan to fight pollution. It aims to reduce energy usage by 20% and increase renewable energy up to 10% from 7% by 2010. To introduce the public to a green life, last week Beijing held a show on energy-saving technology and productions. Environment-friendly machines, such as a vending machine that helps collect used bottles, have attracted lots of attention. "We want to tell people that there are certain ways to protect the environment. Each of us can find effective ways to do it on our daily lives," said Liu Qianguang, an environmental engineer in Beijing.
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Question: The job of the energy-saving policemen is _ .Options:A to set up a special phone lineB to set the air conditioning coolerC to check the use of energy in public placesD to make sure that more energy will be producedAnswer:C