Question

【题目】Your mother have fallen asleep.You were making so much noise so late in the yard then!

A. mustn't B. can't

C. mightn't D. shouldn't

Answer 1

【答案】B

【解析】考查情态动词。句意：你那时在院子里发出那么大的噪音，你母亲不可能入睡。can’t have done表示对过去事情的推测，can’t意为“不可能，肯定不”。mustn’t表禁止，意为“千万不要”； mightn’t表推测，意为“可能不”；shouldn’t have done意为“本不应该做某事”，表虚拟。综上，B选项正确。