1. We haven't seen her since Christmas Day.
2. This is the first time I have eaten this kind of food.
3. It has rained for an hour.
4. The last time we visited my grandfather was 2 months ago.
5. I began studying English 3 years ago.
6. It's nearly five years since my brother last saw his best friend.
7. How long have you learned English?
8. We have lived here for 15 years.
9. She hasn't visited me for 5 years.
10. I haven't written to my uncle since July.
11. We have become close friends for a long time.
12. Minh has collected stamps since 2000.
Mong cho 3 Sao cũng đc !!! ミ★t̾h̾a̾n̾k̾ y̾o̾u̾★彡
