2. 外语
  3. It doesn’t matter when【C1】______a person sleeps, but everyone needs some rest to stay alive. That’s【C2】______all doctors tho

It doesn’t matter when【C1】______a person sleeps, but everyone needs some rest to stay alive. That’s【C2】______all doctors tho

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问题     It doesn’t matter when【C1】______a person sleeps, but everyone needs some rest to stay alive.
    That’s【C2】______all doctors thought, until they heard about A1 Herpin. People said he never【C3】______. Could this be true’?. The doctors decided to see this strange man【C4】______. A1 Herpin was 90 years old when doctors went to his home. They【C5】______that he got some sleep of some kind. So they stayed with him and watched him. But they were【C6】______. Though they watched him hour【C7】______hour and day after day, they never saw Herpin sleeping. In fact, he did not even have a bed. He never needed one. The only rest he got was【C8】______in a chair and reading newspapers. The doctors were puzzled(疑惑)by this strange sleeplessness. They asked him many questions,【C9】______to find an answer. They found only one answer that might【C10】______this. Herpin’s mother was injured(受伤)several days before he was born. But that was all. Was that the real reason? Nobody could answer the question.  
【C10】
选项 A、explained
B、explaining
C、explain
答案C
解析 情态动词(might)后跟动词原形。
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