7. It wasn’t until　　　 that　　　 to prepare their lessons.

A. did the teacher come in; students began

B. the teacher came in; the students began

C. did the teacher come in; did the students begin

D. The teacher came in; did the students begin

6. -Why didn’t you continue your work?

-Because the problem puzzled me so much that I needed to　　　　 it　 　　first.

A. pick; out　　　　　 B. put; out

C. take; out　　　　　 D. make; out

5. His ambition is to　　　　　　 society and give us all better lives.

A. considerB. conveyC. transformD. transport

4. -He hasn’t slept at all for three days.

- 　　　　he is tired out.

A. No problem　　　　 　B. No point

C. No way　　　　　　 D. No wonder

3. If humans　　　　　 　nature, they will suffer sooner or later.

A. care about　　 B. fight for　　　 C. take up　　　　 D. go against

2. The young writer　　　　　 his success to his teacher’s encouragement.

A. devoted　 B. gave　　　 C. owed　　　　 D. added

从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。

1. It is rude to 　　　　　upon another person’s appearance.

A. discuss　 B. observe　 C. remark　 D. argue

5. 他不会违背父母的意愿。(go against)

提升练习

4. 当我最后一次见她时，她正在大街上玩呢。(the last time)

3. 她曾在日本住过，因此能说一口流利的日语。(as a consequence)