3. had left
4. didn't attend
5. to be helped
6. lending
7. not to sell
8. to open
9. not using
10. was driving
11. had bought
12. didn't write
13. have cleaned
14. was reading
15. weren't
16. taking
17. going
18. not to meet
19. not to make
20. told
21. showing
22. were watching
23. were building
24. didn't attend
II.
1. They let him use their car.
2. After the train had left, he arrived.
3. Peter and Maria decided to go to the cinema.
4. Would you like a cup of coffee?
5. Before going to school, she had done her homework.
6. We want to play football with our close friends at weekend.
7. It is very nice to meet your parents.
8. My parents make breakfast for me at home.
9. I want you to travel by bus.
10. She enjoys walking in the rain.
11. To speak to him is easily.
12. Before he went to the cinema, he had bought a ticket.
13. They enjoy going shopping on Sunday mornings.
14. It is very exciting to read his books.
15. After she had eatten breakfast, she went to work.
16. He doesn't forget to turn off the light before going out.
17. When I arrived, Jack had left the office.
18. While I was having lunch someone rang the bell.
