10.　 The boy is very helpful. He always___ clothes for his mother.

9.　　　 The bus hit a tree, for it___ at 60 miles an hour.

8.　　　 The boys spent as much time as they could___ the exam.

7.　　　 I hope the radar ___ here for a long time.

6.　　　 I don’t think the job is easy____.

5.　　　 I won’t have you ___ such things about me.

4.　　　 Mrs Black ___ a letter while Mr Black was watching TV.

3.　　　 More than ten yeas____ since I came to this city.

2.　　　 A moment later, the girl____ to cook.

1.　　　 Listen carefully! He ___ my question.