题目

【A】1.The latest data put forward by the states suggested that the business _____ improving.
A.was B.be C.being D.should
【C】2.----How is your tour around the North Lake?Is it beautiful?
----It ____ be,but it is now heavily polluted.
A.will B.would C.should D.must
【A】3.We ______ have proved great adventures,but we have done the greatest march ever made in the past ten years.
A.needn't B.may not C.shouldn't D.mustn't
【C】4.He _____ have attended the concert,for he knew nothing about it.
A.shouldn't B.mustn't C.couldn't D.needn't

提问时间：2021-01-14

答案

1 suggest 在这里是暗示的意思,不是建议的意思,所以不用should do
2 should 本应该,
3 needn't have done 没必要
翻译：我们没必要证明这是伟大的冒险经历,但是我们完成了十年来最伟大的长征.
4 couldn't have done ：不可能做过,表示对过去的推测
翻译：他之前不可能参加过这个会议,因为他对此一无所知.