1) Susan was playing with a baby at 5 o'clock yesterday.
2) Was Pete reading magazines when his mother came?
3) They weren't swimming 500mt when I came
4) Aiman was cooking the dinner at 6 o'clock yesterday.
5) We were drinking coffee when the phone rang
6) My friend wasn't swimming at 4 o'clock yesterday.
7)I was reading books at this time yesterday