75. He must have had an accident, or he _A_ then.
A would have been here B had to be here C should be here D would be here
must have + 过去分词 表示对过去行为的肯定推测;
与过去事态相反用:情态动词 + have + 过去分词 来体现虚拟语气;
must 一定,必须; neednt, dont have to 不必;
76. You _A_ all those calculations! We have a computer to do that sort of thing.
A needn t have done B must not have done
C shouldn t have done D can not have done
should have + 过去分词 本应该,本应当; shouldnt have done本不应该,本不应当;
77. It was very kind of you to do the washing-up, but you _D_ it.
A mustn t have done B wouldn t have done
C mightn t have done D didn t have to do
78. It was essential that the applications forms _C_ back before the deadline.
A must be sent B would be sent C be sent D were sent
【大学英语四级考试高频词汇精选精学课程第7讲】相关文章:
最新
2019-11-23
2019-11-23
2019-11-23
2019-11-23
2019-11-14
2019-11-14