—What a pity! Their experiment is a failure.—They ________ better under more fav
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—What a pity! Their experiment is a failure. —They ________ better under more favorable conditions.A.should have done | B.could have done | C.must have done | D.may have done |
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答案
B |
解析
试题分析: 句意:--真遗憾,他们的实验是一个失败.—在更加有利的条件下他们本应该做的更好。这里under more favorable conditions.是一个隐含的虚拟语气,相当于if they had been under more favorable conditions.说明是和过去相反的虚拟条件句,所以主句是could have done“过去本可以做的更好”,所以选B。 |
举一反三
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