Bài 7:

1. has worked

2. has studied - is

3. How did you learn to drive? - taught

4. began - arrived

5. What does your sister do... - reading - listening - watching 

6. was - didn't go - stayed - did

7. is living - has lived - moved

8. will visit - Will you go...

9. Where were you while I was working...

10. Have you ever seen... - haven't - will go

Bài 4:

1. studied - was

2. Why did he leave...

3. spent

4. moved

5. Did she start...

Bài 5:

1. are going to have

2. is going to travel

3. is going to have

4, is going to rain

5. Are they going to buy...

Bài 6:

1. will give

2. will help

3. will be

4. won't go

5, Will you come...