2015年大学英语四级必备词汇08
发布时间：2013/8/7 18:11:54 来源：城市网学院 编辑：admin
1. If these shoes are too big， ask the clerk to bring you a smaller _D_.
A suit B set C one D pair
2. Many new _A_ will be opened up in the future for those with a university education.
A opportunities B necessities C realities D probabilities
3. 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; needn’t， don’t have to 不必;
4. You _A_ all those calculations! We have a #puter 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; shouldn’t have done本不应该，本不应当;
5. 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
