1. I did not see Andrew yesterday.
2. I have known Jane for three years, but I don't know what she is thinking.
3. Do you like playing chess?
4. Can I speak to your parents, please? I’m sorry. They are having lunch at the moment.
5. Our teacher is ill so she will be at school next week.
6. John has been playing in the school team for two years.
7. My parents have worked for this company since 1993.
8. I have already broken two plates. Shall I go on washing up?
9. I had been sitting here in the park for an hour , and I met there friends of mine.
10. The students were talking when the teacher entered the room.
11. She was chopping potatoes when she cut her finger.
12. Jill was sleeping when the telephone woke her up.
13. Jane washed all the test-tubes after she had completed the experiment.
14. She was doing cleaning by 6 o’clock yesterday.
15. After the stewardesses had served lunch to the passengers, they calmed down.
16. When she got the results of her medical tests, she realized that she had been feeling ill since she was on holiday.
17. Kate got married when she was 27.
18. The restaurant wasn’t expensive. The meal didn't cost very much.
19. When I arrived at the office, Jane and Paul were working at their desks.
20. Have you ever been to France? Yes, many times. When did you go there last time? Two years ago.
21. Where did you buy that book? It was a present. Ann gave it to me.
22. It’s a nice day today. The sun is shining.
23. The more you study, the better results are.
24. He looks angry. He has been arguing.