15．I don’t know when this world________________________.

[答案]　came into being

14．The boy rode his bike very fast and nearly________________an old man.

[答案]　knocked into

13．He was________________befor高·考￥资%源~网e the performance because he was worried that the audience would not like him.

[答案]　wound up

12．When Mr and Mrs Smith went to cinema last night，someone________________their house and stole all their valuables.

[答案]　broke into

come into being；wind...up；show off；knock into；lose faith in；break into；sentence...to death；on principle；be dying for；lay out

11．Many people are opposed to the sale of arms________________.

[答案]　on principle

10．A talented artist，he was，m________，a writer of some note.

[答案]　moreover

9．I’ve made a few a________to the design.

[答案]　adjustments

8．The company has announced that it will u________a full investigation into the accident.

[答案]　undertake

7．She bore the b________of caring for her sick mother.

[答案]　burden

6．He r________as manager after eight years.

[答案]　resigned