He ______ it on schedule, but somehow he fell behind.A．must have doneB．might fin
题型：不详难度：来源：
He ______ it on schedule, but somehow he fell behind.| A．must have done | B．might finish | | C．could have finished | D．could finish |
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答案
| C |
解析
试题分析：句意为：他本能够按时完成任务，但他莫名其妙的落后了。must have done 对过去发生的事情的肯定推测，译为“一定---”;might do对现在发生的事情的肯定推测，译为“也许---”语气不十分肯定；could have done意为“本能够---”；could do 用于虚拟语气，对现在或将来的事情虚拟。 |
举一反三
-----You ______ it up during the meeting
------I_______ know it was so sensitive an issue. | A．might not have brought ;don’t | | B．needn’t have brought;don’t | | C．shouldn’t have taken,didn’t | | D．shouldn’t have brought ,didn’t |
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--- My son is _____ to be seen. Where has he gone?
--- I think he _____ in the building. | A．nowhere; must be hiding | B．nowhere; must be hidden himself | | C．anywhere; hides | D．everywhere; hides himself |
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There was something wrong with the network，or the e-mail____ earlier.| A．could have been sent | B．might be sent | | C．need have been sent | D．must be sent |
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— My sons are not a little restless.
— Oh? Boys _______ be boys． |
When disaster strikes, you _____ find yourself without water, gas and electricity.| A．will | B．must | C．should | D．might |
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