Problem: Given the question: Write a multi-choice question for the following article, with the given choices and answer: Article: Art lovers around the world have thought about this question for so many years: what is the secret behind the Mona Lisa's smile? However, they can ask Mona Lisa herself in the interactive exhibition in Beijing. This exhibition brings the 500-year-old painting to life. Now Leonardo da Vinci's famous painting can move her head and wave her hand in 3D, and even answer questions. She can answer the questions about her life, her age and so on. But when she talks she doesn't speak Italian but Chinese like: "Da jia hao, wo jiao Mengna Lisha. Hen gao xing jian dao ni men." The new, digital picture of Mona Lisa is the center piece of the World Classic Interactive Arts Exhibition in Beijing. You can also see other world-famous paintings such as Leonardo da Vinci's Last Supper. Last Supper is another picture that they made alive with 3D. In this picture, Jesus can walk and talk with his believers . It took the organizer Wang Hui and over 400 digital artists in South Korea two years to make the picture, at a cost of around 50 million yuan. He says, "What's special about it is that it's the first time to use computer technology to make her speak and move." So what does the Mona Lisa say if you ask her why she is smiling? Options: A Mona Lisa can also sing in Chinese B 3D made Mona Lisa move and speak C 3D made Leonardo da Vinci alive in the exhibition in Beijing. D in the picture Last Supper, Leonardo da Vinci can walk in his room Answer: B 3D made Mona Lisa move and speak Question:
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The answer is:
From the passage we know _ .

Problem: Given the question: Write a multi-choice question for the following article, with the given choices and answer: Article: People sometimes like to read stories of dogs very much. They think that dogs are much cleverer than cats, sheep, cows or other animals in their homes. One of my best friends, Bob, has a dog named Jack. Every Sunday afternoon, Bob and Jack have a walk in the park nearby. Jack likes these walks very much. One Sunday afternoon, I stayed in Bob's home for a long time and we talked happily. Soon it was time for them to take a walk in the park. Jack was worried about it. He walked around the room several times and then sat down in front of me and looked at me. But I still paid no attention to him. I went on talking with my friend. At last, Jack could not wait any longer. He went out of the room and came back a few minutes later. He sat down in front of me again. But this time, he held my hat in his mouth. Suddenly, I understood what Jack meant. Options: A One B Two C Three D Four Answer: B Two Question:
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The answer is:
How many people are there in this story? _ .

Problem: Given the question: Write a multi-choice question for the following article, with the given choices and answer: 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. Options: A there are few ways to protect the environment B it's difficult to find good ways to save energy C it's easy for one to do something good for the environment D it's difficult for one to do something good for the environment Answer: C it's easy for one to do something good for the environment Question:
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The answer is:
According to Liu Qianguang, _ .