一、

1．has waited

2．haven't finished

3．Have, known

4．have heard

5．have been

6．had risen

7．had finished

8．have, stayed

9．haven't read

10．has, done

11．walked

12．will have

13．had planted

14．has gone, left

15．swims

16．has finished

17．if, would come

18．were, doing

19．is going

20．has, had

21．will be

22．reached

23．doesn't rain

24．was walking / walked

25．are playing

26．has lived

27．went

28．had begun

二、

1．I hear your sister has married．Is it true?

Yes, she has been married for 5 years．

She has been married to a doctor．

2．Has your brother joined the army? Yes, he has．

When did he join the army? He joined the army in 1990．

He has been in the army ( has been an army man ) for 5 years．

3．Where is your father? Is he in ( at home )?

No, he isn't ( in )．He has gone to America．

He went there three years ago．He has been there for 3years．

三、

1．watches

2．studying

3．fell

4．driving

5．become

6．plays

7．written

8．heard

9．break

10．read

四、

1．Yes, it is．

2．Are there any English books in the desk?

3．He doesn't have tea at half past two in the afternoon．

4．How long will it take the workers to repair the bridge?

5．Did you do your homework by yourself yesterday?

6．He hadn't done with the goods before he went away．

7．Whose mother was the teacher talking with?

8．How often are you allowed to watch TV at home?