My brother is honest. He _____ such a thing.A．might not doB．can’t have doneC．can
题型：不详难度：来源：
My brother is honest. He _____ such a thing.| A．might not do | B．can’t have done | C．can do | D．mustn’t have done |
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答案
| B |
解析
| 考查情态代词用法。有把握的肯定推测用must,有把握的否定推测用can’t.根据句意可知是对过去发生的事情进行推测。结合句意可知是否定。句意：我的兄弟很诚实。他不可能做了这样的事情。 |
举一反三
-----Who ______ it be that hasn’t handed it in yesterday?
------It _______ be Bob. He handed it in yesterday.| A．can; mustn’t | B．must; can | C．can; can’t | D．may; mustn’t |
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| The boy be very naughty, but he is very lovely. |
—I’m sorry. I ________ at you the other day.
— Forget it. I was a bit out of control myself. | A．shouldn’t shout | B．shouldn’t have shouted | | C．mustn’t shout | D．mustn’t haven’t shouted |
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Mary ______ my letter; otherwise she would have replied before now. | A．has received | | B．ought to have received | | C．couldn’t have received | | D．shouldn’t have received |
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—Thank you very much for giving me a hand when I was in trouble.
—Don’t mention it. I only did what anyone else in my place. | A．must do | B．might do | C．would have done | D．can have done |
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