Что нужно воткнуть 1. I (write) a composition now. 2. I

Что необходимо воткнуть 1. I (write) a composition now.
2. I (not drink) milk now.
3. I (go) for a walk after dinner.
4. I (not go) to the theatre every Sunday.
5. He (not read) now.
6. He (play) now.
7 He (play) now?
8. My mother (work) at a factory.
9. My aunt (not work) at a shop.
10. You (work) at an office?
11. My friend (live) in St. Petersburg.
12. My cousin (not live) in Moscow.
13. The children (not sleep) now.
14. The children (play) in the yard every day.
15. They (not go) to the stadium on Monday.
16. She (read) in the evening.
17. She (not read) in the morning.
18. She (not read) now.
19. You (play) chess now?
20. Look at the sky: the sun (shine), it (get) warmer.
21. Listen! Who (play) the piano in the next room?