1. The wind was blowing when we were in the open sea.
2. She watched the children play.
3. They were leaving when she arrived.
4. I was traveling abroad when i got his letter.
5. She was driving when she saw me in the street.
6. It was raining all the evening yesterday.
7. When I entered the classroom, everybody was sitting at the desks.
8. My friend was working at 1 o'clock yesterday.
9. We were having breakfast when the postman came.
10. Mary got ready for the exam while i was reading.