5.The old lady looked at the children ________(穿过马路).

4.The boy was made ________(重复他自己的故事).

3.She was the first woman ________(环球飞行的).

2.It is dangerous ________(玩火).

1.Have you decided ________(怎样度假).

15.It is very hot here. Would you mind ________ the window?

A. to open　　　　　　　　　　 　　 B. opening

C. open　　　　　　　　　　　　 D. to opening

Ⅳ.用不定式完成下列句子

14.I would like ________ your new bicycle.

A. to see　　　　　　　　　　　　 B. seeing

C. see　　　　　　　　　　　　　　 D. saw

13.It is necessary ________ various kinds of food every day.

A. of us to ear　　　　　　　　 B. for us eat

C. of us eat　　　　　　　　　　 D. for us to eat

12.The teacher expected all his students ________ harder.

A. studying　　　　　　　　　　 B. to study

C. studied　　　　　　　　　　　 D. study

11.Please give the child a pen ________.

A. to write by　　　　　　　　 B. to write for

C. to write with　　　　　　　 D. write with