We were having supper when the phone rang.
This time yesterday Jack was not watching TV.He was repairing his bike.
Were you playing basketball at four yesterday afternoon?
He fell asleep when he was reading
I was wondering if you could give me a lift.
When he had finished his homework,he took a short rest
When I got to the airport,the guests had left．
When we were dancing,a stranger came in
When she was making a phonecall,I was writing a letter
You shall borrow the book when I have finished reading it
