1. Alec was not at home at seven o'clock. He was working.
2. The exam was difficult, and he felt sick.
3. While he was having a swim, somebody came and took away his clothes. 4. What were you doing at eight o'clock?
5. Were you in Rome in 1996? What did you do there?
6. It was pouring when I decided to take my dog out.
7. When the telephone rang, she was sleeping.
8. She looked terrific and she even was wearing her family diamonds.
9. When the professor saw Eliza for the first time, she selling flowers.
10. - What were you doing in this house? - I was looking for my old friend here.
11. Andy dropped his keys when he was gettin on the bus.
12. From nine to ten o'clock the clerks were working in the bank.
13. The performance was a success. The people shouted "Bravo!"
14. She felt that something strange was happening.
15. - Where was he when we were looking for him everywhere? - He was playing chess with his neighbour.
16. - What did they do in May? - They planted cucumbers and tomatoes in their kitchen garden.
17. When the sun rose, everybody was still sleeping.
18. It was a very pleasant evening. The clock was ticking, the fire was burning, romantic music was playing.
19. When (I was lying,) boss entered the office, the secretary was still typing the contracts.
20. At this time yesterday I was lying on the sofa and was reading a novel.