23. Who ____ (teach) them English last term.

22. _____ you _____ your homework yet (start)?

21. Be quiet! The boy ____ (sing) an English song.

20. We will stay at home if it _____ (rain) tomorrow.

19. Did he enjoy ____ (work) in China.

18. Their work is ____ (clean) the streets.

17.He asked me ____ (help) him with his English this evening.

16. I often hear the sound of children ____ (read) English in the room.

15. Could you tell me when the train ____ (arrive).

14. I won´t go out until .I ____ (finish) my homework.