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3. Everyone had been asleep when I got home.

4. It was nice to see David again after I hadn't seen him for nealy five years.
5. The film had already begun when we got to the cinema last night.
6. We had never been to China before.
7. I offered Linda something to eat, but she had had breakfast.
8. David had never played tennis before.
9. I couldn't recognize my brother because he had grown a lot taller.
10. I phoned Ann this morning and asked if she had had time for her vacation.
11. Before I had dinner, I had done Math exercises.
12.My brother gave up drinking beer two years ago.

13. I was interested in walking in the rain when I was young.
14. My sister used to go fishing when she was a student.
15. It took him three months to get over his illness.
16. She was too busy to take her children to the zoo.