四、完成句子

1. 当你不小心撞到某人时请道歉。

8. If you (not be) careful next time,you will fail the exam once more.

7. You can't go to see the movie if you (not finish) your homework yet.

6. She didn't leave until she (hear) they were safe.

5. You (eat) in ihe new restaurant this evening,aren’t you?

4. You should always try to avoid (cross) this street in rush hours.

3. It is impolite (speak) to the old people like that.

2. It was very cold outside,so he (shake) his hands to warm them up.

三、动词填空

1. My mother (wait) for me in the wind when I got home last night.

10. — me,could you tell me the way to the library?

   —Sorry,Tm new here. You may ask the old man sitting there.