Ответ:

11. was going

12. was raining

13. was playing

14. was playing

15. was working

16. was living

]17. was climbing

18. was eating

19. was walking

20.  was travelling

6. was writing

7. was doing, were playing

8. began, were watching

9. rang, was working

10. were singing, came

Объяснение: