Ответ:
1. Ann isn't reading now.
2. Tom is writing now.
3. They aren't drinking milk now.
4. I'm going for a walk after dinner.
5. I don't go to the theatre every Sunday.
6. Is he playing now?
7. My mother works at a factory.
8. My aunt don't work at a shop.
9. Listen! Somebody is playing the piano.