IX.
1. How often do these students go camping?
2. Who is he going to help at the hospital?
3. Where are they going to visit this summer?
4. What does Lan enjoy doing in her free time?
5, What should Nam do to keep fit?
6, Why do you want to listen to some music?
7, What are Ba and his friends in the club talking about?
8, What does Hoa often do to help her mother after school?
9, Where is Lan watching TV?
10, Why is Hoa sick today?
XI.
1. What about going swimming?
2. You should do community service
3 Why don't we listen to some music now?
X
1. coming =>to come
2. to=> too
3. do Mai do=> does Mai do
4. lie=>to lie
5. visiting=>visit
6. much=>more
7. going=>go
8. at on=> on
9. at=>in
10. come=>coming
