I'm taking a test and have to guess the right answer to the question after the article. Article: Several weeks ago, more than 70 American students discussed with American First Lady Michelle Obama at the White House about health problems. The students asked lots of questions that day and Mrs Obama answered them one by one patiently. Then Mrs Obama explained the importance of making healthy choices . _ She told the students that she didn't always feel good about the choices her family was making. Some years ago, when she was working and living with her family in Chicago, Mrs Obama realized she had to make changes in her family's lifestyle. "We were eating out too much, buying a lot of things, and drinking a lot of sugary drinks," she said. So Mrs Obama started talking to her kids about eating healthily and exercising more. Soon they were cooking more, eating fewer desserts, and spending less time watching TV. Mrs Obama realized that making little changes can have a big effect . Mrs Obama said that young people should take care of their own health and their own futures. "Exercise isn't always about sports. It's just about moving," she said. Question: Which is right about Mrs Obama? Options: A: She has failed to change her children's lifestyle. B: She thought people in Chicago should change their lifestyles. C: She moved out from the White House several weeks ago. D: She thought we didn't have to necessarily do sports , but we should move more.
D

I'm taking a test and have to guess the right answer to the question after the article. 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. , . Question: The first try of the hibernation technology _ the six person Human Outer Planets Exploration Mission to Jupiter's moon Callisto. Options: A: will be B: has been planned for C: is certain to be D: may be
D

I'm taking a test and have to guess the right answer to the question after the article. Article: At East China University of Science and Technology, students who finish their food in the dining hall can get a coupon when they return their tray . They can exchange coupons for small gifts, such as books, magazines, mobile phone covers and hand warmers. "It's been a big surprise," said Liang Zhaoyun, 19, a student in the university of Shanghai. "It makes us try our best to finish the food!" But some food in the dining hall is so poorly prepared that students are _ to finish it all. Some schools have paid some attention to it. "The dishes in our canteen are all right, generally speaking. We've tried our best to make it tasty. But of course it's difficult to make all the students love it." said Wang. Other universities also pay attention to the size of food. At Nanjing University, rice is divided into three different-sized bowls that students can choose from. "I like to try different dishes at each meal. So I had to throw away a lot of food because the bowls were too big. But now the dining hall offers small sizes. It's great because I can try different dishes at half price and don't waste so much food," said Fan Peng, a student from Nanjing University. But what if you really can't finish all your food? Some universities also provide a take-away service. If you can't finish all your food, you can get a box to take the leftovers home. Even if you feed the cat, it's not wasted. So you see, if we call on students not to waste food, schools should also improve the service and meal quality. Question: In some universities, if you can't finish all your food, you can _ . Options: A: leave the food on the table and go away B: share it with your friends C: give the food back to the dining hall D: take it away with a box
D

I'm taking a test and have to guess the right answer to the question after the article. Article: Australia is the smallest continent in the world. It is a little smaller than China. It is near the south of the equator .So when it is summer in our country, it is winter in Australia. Australia has a small population .The population of Australia is nearly the same as that of Shanghai, a city in China. Australia is famous for its sheep and kangaroos. After driving for a short time from any town, you will find yourself in the middle of white sheep. Sheep are everywhere. Have you seen a kangaroo? It has a "bag" below its breast . The mother kangaroo keeps its baby kangaroo in the "bag". It is very strange, isn't it? Question: Australia is famous for its _ . Options: A: kangaroos B: deer C: elephants D: birds
A