My sister met him at the Grand theatre yesterday afternoon,so he_______have attended your lecture.A.couldn't B.needn't C.mustn't D.shouldn't

问题描述:

My sister met him at the Grand theatre yesterday afternoon,so he_______have attended your lecture.
A.couldn't B.needn't C.mustn't D.shouldn't

A
can't/ couldn't have done 根本不可能...
needn't have done 本没必要,,,,
must have done. 肯定已经.....(不要用mustn't have done.....)
shouldn't have done 本不该......

你好。答案是A
he COULDN'T have attended your lecture.
== It is impossible that he attended your lecture.

My sister met him at the Grand theatre yesterday afternoon,so he_______have attended your lecture 昨天下午我妹妹在大剧院碰见了他,因此他【肯定没有】参加你的讲座. A couldn't 没有B needn't 不需要C mustn'...

A,应该是他不可能会参加你的演讲,据前半句判断