—Is it good a look up every new word when I come across it in reading?—No,You__
题型：不详难度：来源：
—Is it good a look up every new word when I come across it in reading?
—No,You__________because you are likely to guess the meaning from the context.| A．can’t | B．mustn’t | C．don’t have to | D．ought not to |
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答案
| C |
解析
| 本题考查情态动词。don’t have to不必；mustn’t禁止、不允许。 |
举一反三
Had the boy worked harder,he__________the exams.| A．must have got through | | B．could get through | | C．ought to get through | | D．would have got through |
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It rained a lot during their journey,so they__________have had a good time.| A．can’t | B．must | C．shouldn’t | D．might |
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All the people started early so that they__________there in time.| A．got | B．was getting | C．could get | D．must get |
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—I saw Annie in the supermarket yesterday.
—You__________her;she is still studying abroad.| A．mustn’t see | B．can’t have seen | | C．mustn’t have seen | D．couldn’t see |
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—Tom,did you see the film “Jaws” last night?
—Yes,but I really__________,because I had lots of work to do.| A．couldn’t have | | B．mustn’t have | | C．needn’t have | | D．oughtn’t to have |
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