...................................

1-c ...what the baby was doing.
2-b Which ones.
3-b Have you washed the floor yet?
4-b ...when I saw her.
5-a I used to eat...
6-c The text-books are sold...
7-a I have always had it.
8-b The windows are washed twice a year.
9-a They built...
10-c The book was translated...

1. What was she doing when the telephone rang.
2. I bought a small one.
3. Was it raining when you left the house?
4. I'll have some sandwiches then.
5. Jane used to watch TV in the morning.
6. Green ones.
7. He could hardly hear what they were saying.
8. More than 5 million people have seen...
9. Where did she use to work?