题目内容
15. ―Mary broke up with me !
^You have forgotten about the Valentine's Day.
A. shouldn't B. couldn't
C. needn't D. mustn't
15. A 考査情态动词。shouldn't have done sth本不应该做某事。句意:"玛丽和我分手了!""你本不应该忘记情人节。"couldn't have done sth不能做了某事;needn't have done
sth本来没有必要做某事。
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