5. What is the distance between the first row and the second row?
6. It is 20 centimeters between my bed and my desk.
7. How far is it from Lan's house to Mai Anh's house?
8. Do you live near here?

9. Is it 1000 kilometers from Ha Noi to Ho Chi Minh City?
10. Where is the Summer Restaurant?
Excercise 6:

1. (-) They didn't use to play tennis twice a week.
    (?) Did they use to play tennis twice a week?

2. (-) I didn't use to go to the gym three times a week.
    (?) Did you use to go to the gym three times a week?

3. (-) Tennis didn't use to be a sport for rich people only.
    (?) Did tennis use to be a sport for rich people only?

4. (-) My father didn't use to take me to see a soccer games on Saturday.
    (?) Did your father use to take you to see a soccer games on Saturday?

5. (-) He didn't use to buy a new tennis racket.
    (?) Did he use to buy a new tennis racket?

Exercise 7:
1. They used to go to Da Lat in the summer.
2. We used to play soccer in the past.
3. I use to get up earlier when I had work.
4. Tom used to do his homework in the evening.
5. Lan used to write to Mary twice a month.
6. He used to work at night when he worked in the supermarket.
7. Did they use to watch TV in the past?
8. She used to play badminton in her free time.
9 They used to go swimming in the afternoon in 1990.
10. He used to be a doctor in that hospital.