I.
1. A
2. B
3. C
4. A
5. B
II.
1. How often do you go to the market?
-> I go to the market every day.
2. Which sports does Lan play?
-> She plays badminton.
3. What do you do in free time?
-> I play video games.
4. What is your father doing now?
-> He is reading newspaper.
5. How much is ice cream?
-> It's 2000 dong.