I was watching tv when my mother came in.
I was eating when the dorbell rang.
You were dancing when your friends started to play.
They were writing when their parents came in.
He was cooking when his wife arrived.
She was sleeping while her brother was writing a poem.
I was listening music when you started crying.
We were having a bath when father opened the door.
You were watching me while i was watching you.
The dog was barking while Sam was smoking a cigarette
