Объяснение:

1) have been

2) have seen

3) hasn't met

4) hasn't heard

5) have written

6) haven't finished

7) hasn't had

8) hasn't got up

9) hasn't washed up

10) haven't told

11) Have you mentioned my name?

12) Has your mother already come?

13) Where has Martin gone?

14) Why has John taken this book?

15) Has Jane been at the theatre this week?