1. When I arrived at the party, some guests (already leave).

2. After she (pass) her exams, she went on holiday with her friends.

3. We (wait) for half an hour and then we left.

4. I (know) about Tom's problems long before I spoke to him.

5. The ground was all white so it (snow) at night.

6. I (lie) in bed for two hours when my boyfriend called me.

7. She wasn't tired at all because she (sleep) all day.

8. My flat looked really nice because my daughter (just clean) it.

9. I told you that Mark (take) my money from the table.

10. I was tired because I (work) all day.

11. My wife (do) all her work before I got home after the times meeting.

12. They (walk) all afternoon when Bill suddenly fell down.

13. I could smell cigarettes in my room so someone (smoke) there.

14. She said she (see) the Monet exhibition in Paris before.

15. By the time I appeared at Bill's place, he (already get) very drunk.