Английский для 7 класса помогите решить

Ответ: 6. Is

7. Writing

8. Played

9. Doesn't watch

10. Helped

11. Had done

12. Met

13. Worst

14. Invited

15. Heard

16. Had worked

17. Will have

18. Singing

19. Her

20. Him

Объяснение: