1: How far is it from Ha Noi to HCM City?
2: He used to go swimming when he was a boy
3: It takes me 15 minutes to ride my bike to school
4: They didn't go to school on foot when they were small
5: He used to live here when he was a boy
6: It's about 10km from Tu Son to Bac Ninh
7: He sometimes went fishing when he was young
8: Did you use to go to school by bus?
9: My father often drives me to school
10: The last time he has written to me was last week
11: He started to collect stamp when he was ten
12: This house was built last year
13: It's not very far from here to the market
14: We was excited at the festival last week
15; This bike is used by me everyday
15 câu trc nha
