Ex 1:
1. She doesn't sleep late on weekends.
2. We don't believe ghost.
3. Do you understand the question?
4. They don't work late on Friday.
5. Does David want some coffee?
6. She has three daughters.
7. When does she go to her Chinese class?
8. Why I have to clean up?
Ex 2:
1. has
2. is
3. is
4. likes
5. never bites
6. barks
7. is
8. doesn't like
9. often plays
10. becomes
11. just sleeps
12. plays
13. are
14. doesn't let
15. often takes
16. is sometimes
$\text{CHÚC EM HỌC TỐT!}$