1. We were playing volleyball with Mary, when you called me.
2. When the teacher came in, they were studying English.
3. The baby was sleeping when the telephone rang.
4. As I was walking in the streets of Holland, I met an old friend of mine.
5. My uncle lost his car keys yesterday.
6. I was looking for my purse when I dropped my credit card.
7. I was doing my homework the whole evening yesterday.
8. She was dancing when she hurt her ankle.
9. It was raining heavily when I got up.
10. I saw the thief when he was getting into my neighbour's house.
11. What were you doing whenI rang you up?
12. He was not sleeping when father came home. He was doing his homework.
