input question: Write a multi-choice question for the following article: Article: The ozone layer is a thin layer of gas around the earth. It forms a special "blanket" around the planet. This "blanket" protects the earth from dangerous rays produced by the sun. Without the ozone layer, the earth's climate could warm to dangerous levels. This increase in temperature would threaten our survival. Scientists recently have discovered a hole in the ozone layer above the Antarctica. Now there is great concern that this warning has started, endangering all life on the earth. What has destroyed part of the ozone layer? Scientists do not know for sure. They suspect that our popular spray cans have played a part in the damage. Many spray cans contain dangerous gases. These gases might have destroyed the ozone layer fifteen miles above the earth's surface, The chemicals used in refrigerators and air conditioners may contribute to the problem, too. Many scientists believe that the destruction of the ozone layer is a serious problem for people everywhere. Global warming could change weather patterns around the world. Farmers and ranchers could find it more and more difficult to produce enough food for the earth's people. If more of the sun's dangerous rays reached the earth, there also could be an increase in skin cancers. Some skin cancers might cause people to die. Although some scientists do not believe there is a serious danger, obviously no one wants to take any chance on such a possibility. Can scientists repair the hole in the ozone layer? They really don't know the answer to that question. Can people do anything to save the ozone layer that the earth still has? Scientists stress the need to limit the use of spray cans and other items that contain the dangerous gases. This will not be an easy task. People all over the world use these items. Solving the problem certainly will require commitment and cooperation from everyone.???
output answer: Question: The ozone layer exists to _ .Options:A warm the earth to a proper level for lifeB protect the earth from dangerous sun raysC make all life on the earth in a dangerous situationD prevent human beings from being harmed from the earthAnswer:B

input question: Write a multi-choice question for the following article: Article: When my students ask me why I live in a tiny house, they ask it in light of all the "sacrifices "I an making. They know that I have moved from a large apartment in the city to a small custom-built home on wheels in the backyard woods. They know I _ running water, Internet connection, sewage , and reliable phone reception. However, it was possible for me to be truly happy while living with very few material things. My body responded well, in health, fitness and mood, to a schedule more consistent with the natural day and night cycle. Observing the daily sunset, hosting friends for days at a time, reading, writing letters to my families and friends and exploring natural wonders in my spare time all were free and invaluable experiences. What was necessary to my survival proved to be a rather short list-healthy food, clean and drinkable water, heat source, weather-protecting shelter, weather-suitable clothing, equally important friends and mental and physical stimulations . When I returned to life in the US, I couldn't help but sense a deep and uneasy belief that life suddenly changed. I felt disconnected with many things- the earth, others, my food source, my waste disposal, the natural cycle of my body and the productive interests. These are the things I once cared for but now find myself too busy to enjoy. How was it that I was earning literally 40 times my Peace Corps salary and was less healthy, satisfied and intentional in my daily schedule? I found myuself asking-what is it to be rich anyway? Therefore, last August I let go of most of my possessions and moved into a tiny house on wheels because I wanted to see if I could live a more enjoyable lifestyle. So far so good. No inconvenience has made up for the many positive benefits that continue to come from this change in lifestyle. I believe that I have made the right decision.???
output answer: Question: What did the author feel when he returned to the US?Options:A He was behind the times.B He wouldn't enjoy the modern life.C He was rich enough to enjoy the city life.D He was disconnected with the outside world.Answer:B

input question: Write a multi-choice question for the following article: Article: School children are using mobile phone applications to do their homework, which seem to beincreasing during summer vacations. But instead of blaming students for their behavior, we should say noto too much homework. This is important because by using mobile phone applications to do theirhomework, students don't add much to their knowledge, says an article in Guangzhou-based YangchengEvening News. Excerpts : Using mobile phone applications to do homework is no different from copying from someone else'swork. This is the opinion of a vast majority of teachers. Students who seek cell phone apps help to do theirhomework will pay dearly during major exams when they cannot seek the help of such applications, theteachers say. The heavy load of homework Chinese students are burdened with, said to be the heaviest in the world,has led to the popularity of these applications. Senior high school students in China rarely go to bed before 11 pm. A report in Shanghai published in2013 showed that students in the city on average spend 28.2 hours in class every week, the 9th highestamong 65 countries and regions surveyed. Also, they spend an average of 13.8 hours a week doinghomework, most in the world. There is no association between the amount of homework one does and the amount of knowledge onegathers. In fact, a research by Australian experts shows that the result is exactly the opposite: the morehours students spend doing homework, the less effective they will be in gaining knowledge. The United States is one of the countries where students do little homework, but that has not damagedthe country's academic status in the world. So, it's time Chinese schools understood this fact and freed students of the unnecessary burden ofhomework.???
output answer:
Question: What's the writer's attitude toward the students' using mobile phone applications to do theirhomework?Options:A SupportingB UnderstandingC ScoldingD PraisingAnswer:B