Theymusthavebeenenjoyingthemselves

发布时间：2020-07-10 14:12:09

They must have been enjoying themselves there,otherwise they _________ so long.













A.can’t have stayed












B.wouldn’t have stayed











C.needn’t have stayed











D.couldn’t stay

网友回答

B解析must have done表示对过去有把握的推测,他们一定在过去那时玩得很高兴。后面是否则他们就不会待这么长时间,这里也是对过去的可能性的推测。
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