1. Is not watching, is sleeping, is
2. Is not cooking, cooks
3. Am not drinking, am writing
4. Do not drink, drink
5. Is...doing
6. Does...go
7. Is sleeping
8. Sleeps
9. Does not work
10. Is not sleeping, is working
11. Get
12. What is your sister doing now?, is washing
13. When do...come, come
14. Where does...work
15. Does...study, goes