Ответ:

1. went

2. had just left

3. studied

4. felt

5. wanted

6. decided

7.

8. found

9. were

10. arrived

11. had just left

12. rang

13. ran

14. had stopped

15. reached

16. got

17. checked

18. went

19. made

20. realised

1. d

2. b

3. d

4. d

5. c

6. d

7. a

8. a

9. b

10. c