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【题目】Research findings show we spend about two hours dreaming every night, no matter what we ____________ during the day.

A. may have done B. could do

C. must have done D. would do

【答案】A

【解析】考查情态动词辨析。句意:研究结果显示,我们每晚要花两个小时的时间做梦,无论白天做了什么事情。” may have done“可能已经做了某事”;could do“可以做某事”;must have done“一定已经做了某事”; would do“总是做某事”。这里表示“可能”,且表示对过去的推测。故选A。

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