II. Open the brackets and put the verb into the correct form of the present perfect or the past perfect; the present perfect continuous or the past perfect continuous tense.

1. Andy was relieved to hear that he had passed the exam..

2. We (travel) for a year when we ran out of money and had to return home.

3. I had breakfast by the time the others woke up.

4. They (live) here for two years.

5. How long she (teach) English?

6. I (know) him since we were children.

7. Ever since the accident Susan (be) afraid to drive.

8. He (lose) weight recently. What (happen) to him?

9. It’s the first time I ever (see) this film.

10. He waited until she (leave) before he started working.

11. The lab-on-a-chip (save)money and time.

12. He (not have) degree before graduation from the university.

13. Why she (not respond) to my request so far?

14. How many times has Wendy been late for work this week?

15. For the past few years, I (notice) my dentist (replace) traditional methods of treatment with laser dentistry.

16. The room was empty – everyone (go) out
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