—Did Ann fail in English?—She ________. Don"t you notice that she looks depresse
题型：不详难度：来源：
—Did Ann fail in English?
—She ________. Don"t you notice that she looks depressed?| A．might | B．must | | C．may have | D．could have |
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答案
| C |
解析
| C 考察情态动词。句义：—安妮通过了英语考试了吗？—她没有通过。你没有看到他很失落吗？由句义可知，这是对过去事情的推测。所以排除AB项。D项意为“本来能够通过考试”。 |
举一反三
We all know that we ________ our carbon footprint, but I suspect that many people wouldn"t be prepared to go as far as Joan Pick, a retired scientist living in south London.| A．must have reduced | B．should have reduced | | C．may have reduced | D．could have reduced |
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Brain, like muscles, also needs some kind of exercise and nutrition. The more you use your brain in the right direction, the more you ________ enhance your ability.| A．could | B．might | | C．shall | D．will |
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—Mum, I"m tired.
—Well, if you ________ go to bed after midnight every night, what do you expect? |
A hot balloon blew up in Egypt. There ________ something wrong with the quality of it.| A．may have been | B．must be | | C．need have been | D．might be |
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—David is often absent from class.
—Tell him he ________ answer for it if he goes on behaving like that.| A．shall | B．might | | C．would | D．can |
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