1. Are we late?
2. Is he a doctor?
3. Does he walk to school?
4. Do they brush their teeth every morning?
5. Do you play the piano well?
6. Does he read a lot?
7. Is Jane at home?
8. When does he usually come home after work?
9. They aren't friends, are they?
10. Do you take shower every eveninig?
11. We are not late, we are just in time.
12. He isn't a doctor.
13. He doesn't walk to school, he rides a bike.
14. They don't brush their teeth every morning.
15. I don't play the piano well.
16. He doesn't read a lot.
17. Jane is not at home now.
18. He usually comes home at 7 pm.
19. They aren't friends.
20. I don't take shower in the evenings, I take shower every morning.