1. am not drinking; am writing. 2. don't drink; drink. 3. Is your friend doing... 4. Does your friend go... 5. is sleeping. 6. sleeps. 7.doesn't work. 8. isn't sleeping; is working. 9. get up. 10. is doing; is washing. 11. When do you usually come...; I come... 12. Where does your cousin work? He works at a hospital.
