Відповідь:

1. had started

2. had lived

3. had eaten

4. had listened

5. had left

6. had finished

7. had been

8. had met

9. had forgotten

10. had studied

11. hadn't rained

12. hadn't paid

13. hadn't done

14. hadn't eaten

15. hadn't brought

16. hadn't visited

17. hadn't met

18. hadn't had

19. hadn't used

20. hadn't studied

Пояснення: