1. started

2. worked

3. didn't walk

4. Did you play

5. cooked

6. didn't watch

7. washed

8. cried

9. finished

10. surfed

11. didn't enjoy

12. listened

13. Did you visit

14. helped

15. didn't travel

16. tried

17. Did you like

18. Did your friend ski

19. used

20. opened