Verified answer

1. Was

2. Left

3. Went

4. Gave

5. Learnt / learned (первый больше британский, оба правильные)

6. Met

7. Started

8. Played

9. Sang

10. Could

11. Studied

12. Continued

13. Changed

14. Became

15. Wrote

16. Got

17. Moved

18. Lived

19. Died