=>
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 two months ago.
5. I began studying English three years ago.
6. It's nearly five years since my brother last saw hís best friend.
7. How long have you learnt English?
8. We have lived here for fifteen years.
9. She hasn't visited me for five years.
10. I haven't written to my uncle since July.
11. We have become close friend for long time.
12. Minh has collected stamps since 2000.

1. seen her since christmas day.

2.the first time I have eaten this kind of food.

3.rained since for an hour.

4.we visited my grandfather was two month ago.

5.to study english three years ago.

6.nearly five years since my brother has last seen his best friend.

7.have you learnt english?

8. lived here for fifteen years.

9.visited me for five years.

10.written to my uncle since July.

11.become closed friend for long time.

12.begun to collect stamps since 2000.