=>
VI/
1. How many days-off does Mr.Tuan have in a week?
2. What does Ba like?
3. Why are Mai and Nga going to the post office?/What are Mai and Nga going to the post office for?
4. How can Mai play badminton?
5. How does your brother usually go to scool everyday?

VII/
2. Practicing the piano takes Hoa thirty minutes a day.
3. Shall we go to the movie theater?
4. Nguyen Tien Minh plays badminton excellently.
5. Of the three, Nam is the tallest person.
6. What's your son's weight?

7. You had better not eat too much meat.
8. I prefer listening to music to going to the concert.
9. He drives more slowly and carefully than I do.
10. Why were you absent from school yesterday? 

IV/
1. competitions
2. famous
3. helpful
4. selection
5. age
6. illness
7. Unluckily
8. building
9. length
10. appointment

V/
1. at
2. about
3. for
4. of
5. of
6. from
7. after
8. before
9. up
10. at