5. She used to live in Tam Diep in the past.
6. My daughter started to study English two years ago.
7. I've played the piano for ten years.
8. We started to learn English 4 years ago.
9. They started to work in that factory in 2001.
10. It's the first time I saw her in a long time.
11. I haven't seen her for ten years.
12. They used to go to Vung Tau at weekends.
13. He used to swim in this river but now he doesn't.
14. They used to be friends.
II.
1. C
2. A
3. B
4. A
5. D
6. C
