помогите пожалуйста................

1. This is the nicest restaurant we've seen.
2. Ten people have left the University this week.
3. We've already writen three compositions.
4. They've had two holidays this year.
5. We've seen that film.
6. Someone has knocked down your front gate!
7. It's the first time they've been here.
8. Have you done your homework yet?
9. This is the second time they've damaged his car.
10. He has had a shave!
11. She has been here since eight o'clock.
12. Saltanat has just gone out.
13. My mother has never smoked.
14. This is the second time the children have been on a plane.
15. Have you already seen John?

1. 've seen
2. 've left
3. 've written
4. 've had
5. 've seen
6. has knocked down
7. 've been
8. Have you done
9. 've damaged
10. has had
11. 's been here
12. has just gone out
13. has never smoked
14. 've been
15. Have you already seen John?