1.)When she was young,she danced a lot.
2.)Mike was driving home when his car broke down .
3.)Nike was reading a book while Kate watched TV at 4 o’clock yesterday afternoon.
4.)Father was tired.He worked on his computer all night.
5.)He was upset because he lost his money.
6.)I was waiting for an hour before the bus came .
7)Mary and Ann were talking when I came into the room.
8.)When I came home Granny was knitting.
9.)When the teacher came into the class,John was writing on the board.
10.)While my son waited for my call,somebody knocked at the door.