8.1:
2. No, she isn't. Yes, she does. She is playing the piano.
3. Yes, he does. Yes, he is. He is cleaning a window.
4. No, they aren't. Yes, they do. They are watching television.
8.2:
2. don't
3. are
4. does
5. is, don't
6. do
7. does
8. doesn't
8.3:
4. is singing
5. she wants
6. do you read
7. you are sitting
8. I don't understand
9. I want to go, can you come
10. what time does your father finish
11. I am not listening
12. he is cooking
13. doesn't usually drive, usually walks
14. doesn't like, she prefers
