[Q]: Write a multi-choice question for the following article, with the given choices and answer: Article: A new study suggests that early exposure to germs strengthens the immune system. That means letting children get a little dirty might be good for their health later in life. The study involved laboratory mice. It found that adult mice raised in a germ-free environment were more likely to develop allergies, asthma and other autoimmune disorders. There are more than eighty disorders where cells that normally defend the body instead attack tissues and organs. Richard Blumberg,who led the study,is a professor at Harvard Medical School in Boston,Massachusetts. He says,in 1989,medical researchers who sought to explain these diseases, first discovered that the increasing use of antibacterial soaps and other products, especially early in life, could weaken immune systems. Now, Dr. Blumberg and his team have what is the first biological evidence to link early exposure to germs to stronger adult immune systems. They say this exposure could prevent the development of some autoimmune diseases. In the adult germ-free mice, they found that inflammation in the lungs and colon was caused by so-called killer T cells. These normally fight infection. But they became overactive and targeted healthy tissue--an autoimmune condition seen in asthma and a disease called ulcerative colitis . Dr. Blumberg says the mice raised in a normal environment did not have the same reaction. He says their immune systems had been "educated" by early exposure to germs. Rates of autoimmune disorders are rising worldwide, but mostly in wealthier, industrialized countries. According to Dr. Blumberg, it might be high time that people were warned to be more careful with the early use of antibiotics and the prescription from their doctors. Rob Dunn is a professor of ecology and evolutionary biology at North Carolina State University in Raleigh. He says the new study does not mean people should stop washing. "Wash your hands , but don't do it with antibacterial soap. Let your kids play in a reasonable amount of dirt and get outside and get... Options: A Because their T cell fight bacteria effectively. B Because their T cells attack the healthy tissues. C Because their lungs become abnormally active. D Because their lungs have weaker tissues. Answer: B Because their T cells attack the healthy tissues. Question:
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[A]: Why are germ-free mice easy to develop lung inflammation?

[Q]: Write a multi-choice question for the following article, with the given choices and answer: Article: I had recently arrived in London and I wanted to see some of the famous places. Should I go to the seaside? Or maybe one of the famous parks? I walked along the street, past a kindergarten playground, and suddenly saw an underground railway station. I was surprised because it was not on my map. I went to buy a ticket. The ticket-seller looked very old. He gave me a ticket, said "Remember it's a return", laughed and walked away without taking my money. Was it special for tourists? A train arrived. I could not see any other passengers. I got on and the doors closed. I suddenly felt I should not have got onto the train. It started to go faster and faster, shooting along the tracks. As it entered the tunnel, everything became as dark as midnight and I do not remember the next few minutes. The train came to a station and I got out. I could see light shining in the distance so I walked towards _ and came to a door. Beyond it there was a busy street. There were lots of English people walking about, and I could see some of the famous buildings of London, but there was something wrong. The people's clothes were strange. There were no cars, no motorbikes--but there were horses everywhere. Was someone making a film? "Excuse me," I said to a man. "Would you mind telling me where I am and what is happening?" "What do you mean? Who are you? Where do you come from? Are you from China? This is London and everyone's going to work. Can't you see that?" he asked. "Thank you, sir. I'm sorry, but could I look at your newspaper?" I asked. "You can have it," he said as he walked off. I looked at it; I saw "New Bicycle Law" and above that "July 5, 1880". Maybe I should have walked around, but I ran back to the door. I waited a long time. I was very afraid. A train came. I got on. It took me back to the first station. As I left, a woman asked, "What were you doing in that abandoned station?" I had no answer, but I still had the newspaper in my hand. Options: A The name for a London street. B The name for a film made in London. C The name for a newspaper article D The name for a underground station. Answer: C The name for a newspaper article Question:
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[A]: According to the passage, New Bicycle Law might be _ .

[Q]: Write a multi-choice question for the following article, with the given choices and answer: Article: John and Bobby joined a wholesale company together just after graduation from college the same year. Both worked very hard. After several years, however, the boss promoted Bobby to the position of manager but John remained an ordinary employee. John couldn't understand it anymore, gave his resignation to the boss and complained that the boss didn't value hardworking workers, but only promoted those who flattered him. The boss knew that John worked very hard for the years. He thought for a moment and said, "Thank you for your criticism , but I have a request. I hope you will do one more thing for our company before you leave. Perhaps you will change your mind and take back your resignation." John agreed. The boss asked him to go and find out anyone selling watermelon in the market. John went and returned soon. He said he had found out a man selling watermelon. The boss asked how much per kg? John shook his head and went back to the market to ask and returned to tell the boss $1.2 per kg. Boss told John to wait a second, and he called Bobby to come to his office. He asked Bobby to go and find anyone selling watermelon in the market. Bobby went, returned and said, "Boss, only one person selling watermelon. $1.2 per kg, and $10 for 10kg. He has 340 melons in all, 58 of which are on the table. Every melon weighs about 2 kg. Bought from the South two days ago, they are fresh and red, good quality." John was very impressed and realized the difference between himself and Bobby. He decided not to resign but to learn from Bobby. My dear friends, chances exist in the daily details. For the same matter, a more successful person sees more and farther so that he can find out an opportunity and catch it to realize his aim. Options: A a successful person observes and thinks more B a successful person is curious and eager to learn C the main key to success is to know what you want D one's success sometimes is not related to his hard work. Answer: A a successful person observes and thinks more Question:
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[A]:
The story shows such an opinion that _ .