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1. I haven't gone to Ha Noi for over one year. -> the last time

  - The last time I went to Ha Noi was over one year ago.

2. I have done this job for a year. -> It's

  - It's been a year since I started doing this job.

3. She started working in this school five years ago. -> She has.

  - She has been working in this school for five years.

4. My daughter has studied English for two years. -> my daughter started

  - My daughter started studying English two years ago.

5. I started to play the piano ten years ago. -> I've

  - I've been playing the piano for ten years.

6. We have learnt English for 4 years. -> we started

  - We started learning English four years ago.

7. They have worked in that factory since 2001. -> They started

  - They started working in that factory in 2001.

8. I last saw her ten years ago. -> I haven't

  - I haven't seen her for ten years.

9. I started playing tennis last year. => I've.

  - I've been playing tennis since last year.

10. He began to use the computer when he was 19. => He has

  - He has been using the computer since he was 19.

20. She didn't learn hard in 2005. -> She hasn't____________

  - She hasn't learned hard since 2005.

21. Peter watched this film when he came home. => Peter has ______________

  - Peter has watched this film since he came home.

23. The boys began playing soccer a year ago. => The boys have

  - The boys have been playing soccer for a year.

24. We have learned English for 4 years. We began........................

  - We began learning English 4 years ago.

25. Susan has worked for this factory for 10 years. -> It's 10 years.................

  - It's been 10 years since Susan started working for this factory.

26. We have learnt English for 3 years. We began.......................

  - We began learning English 3 years ago.

27. Bob began writing to his penpal 4 weeks ago. => Bob has....................

  - Bob has been writing to his penpal for 4 weeks.

28. We have built this house for 5 months. -> We started....................

  - We started building this house 5 months ago.