He ___________ the test, but he wasn’t careful enough.A．was able to passB．must h
题型：不详难度：来源：
He ___________ the test, but he wasn’t careful enough.| A．was able to pass | B．must have passed | C．could have passed | D．might be able to pass |
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答案
| C |
解析
| 考查虚拟语气。句意：他本来能够通过考试，但是他不够细心。“would+have+done”表示对过去事情的假设，表示本来会做而没有做的动作。联系句子意思可知选C。 |
举一反三
The World Health Organization warned that Asian countries __________ attentive to bird flu since Asia ___________ got rid of the disease completely.| A．should keep; has | B．must remain; has not | C．ought to stay; has been | D．shall be; has not been |
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— Oh, it’s you. I__________ you. Why are you looking so thin and pale?
— I’ve been ill for weeks and still under treatment. | A．can’t recognize | B．could hardly recognize | C．haven’t recognized | D．wasn’t recognizing |
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---But for your timely warning, we __________ into great trouble.
---Well, you know we’re friends.| A．would get | B．must have got | C．would have got | D．can’t have got |
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. He __________ full marks, but he was so careless as to make a spelling mistake.| A．must have gained | B．can have gained | C．could have gained | D．must gain |
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Don’t push me! __________ you know the truth right away? | A．Must | B．Could | C．Might | D．Would |
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