题目内容
【题目】
—Did your mother sleep well last night?
—She ______ have slept through all those noises.
A. mustn't B. may not
C. can't D. won't
【答案】C
【解析】 考查情态动词。根据信息词all those noises 可知,她不可能在那种吵闹的环境里睡好觉。对过去动作的推测表示“不可能做某事”应用 couldn't/can't have done。
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