1. When the rain STARTED the girls WERE WALKING in the park.
2. When the teacher CAME into the classroom all the students WERE LAUGHING.
3. While I WAS WORKING on the computer,my brother WAS PLAYING basketball.
4. Everybody WAS SINGING and DANCING when the electricity WENT off.
5. When father CALLED we WERE WATCHING TV.
6. While David WAS DRIVING, his friends WERE SLEEPING.
7. Someone ENTERED the room and STOLE my purse.
8. While Mike WAS JOGGING, his sister WAS CYCLING.