Ответ:

1) saw

2) Have you ever met

3) were you

4) Have you seen

5) didn't go

6) bought

7) did you

8) has repaired

9) has lived

10) hasn't found

11) did you buy

12) painted

13) did you get

14) has arrived

15) has been

16) finished

17) has gone

18) wasn't

19) were

20) has lived