1. It has been a year since she started her new job.
→ She has been in her new job for a year.

2. It's the first time they have visited the museum.
→ They haven't visited the museum before.

3. She began studying ballet when she was five.
→ She has studied ballet since she was five.

4. The last time she saw her parents was a long time ago.
→ She hasn't seen her parents for a long time.

5. When did you last phone her?
→ How long is it since you last phoned her?

6. Have you ever climbed a mountain?
→ Is this your first time climbing a mountain?

7. I started reading the book last night.
→ I have just started reading the book.

8. This is the first time she has eaten a frog hotpot.
→ She has never eaten a frog hotpot before.

9. He started working as a teacher 30 years ago.
→ He has been working as a teacher for 30 years.

10. Is this your first visit to Vietnam?
→ Haven't you been to Vietnam before?

11. He last sent me postcards when he was in France.
→ The last time he sent me postcards was when he was in France.

12. She began writing the report 45 minutes ago.
→ She has been writing the report for 45 minutes.

13. We knew each other when we were in grade 7.
→ We have known each other since grade 7.

14. This is the first time I have joined such a fantastic birthday party.
→ I haven't joined a birthday party as fantastic as this before.

15. This is the second time I have seen Harry Potter.
→ I have seen Harry Potter once before.

16. She moved to this city 6 months ago.
→ She has been living in this city for 6 months.

17. Have you done this before?
→ Is this the first time you have done this?

18. She has taught the children in S.O.S village for 2 years.
→ She started teaching the children in S.O.S village 2 years ago.

19. How long has it been since you bought this bicycle?
→ When did you buy this bicycle?

20. I last ate soup when I was in Vietnam.
→ I haven't eaten soup since I was in Vietnam.

21. He has never tried sushi before.
→ This is his first time trying sushi.

22. We began learning French two months ago.
→ We have been learning French for two months.

23. Is this the first time you have seen a shooting star?
→ Haven't you seen a shooting star before?