III.
1. is running.
2. buys.
3. isn/t drinking.
4. are climbing.
5. is crying.
6. wear.
7. are you doing?
8. eat.
9. sets off.
10. aren't going.
11. haven't spoken.
12. haven't seen.
13. has done.
14. has already begun.
15. Are/staying.
16. have ever seen.
17. has just seen.
IV.
1. What does Linh have for breakfast?
2. Where does your father have lunch?
3. What does Mai's brother want?
4. How much tea does Miss Thu need?
5. What does Dung want?
6. How often does he go to the cinema?
7. Where is Lan going to live?
8. What are they going to do?
9. Where is Miss Hoa going to stay tonight?
10. What are you going to do this Saturday?