1.While she was reading a book she fell asleep.
2.The teacher was talking when the students started shouting.
3.A mother came in while her children were crying.
4.Mark was walking down the street when he bumped into Kate.
5.We heard the news while we were sitting in the restaurant.
6.While she was having a bath she heard a loud noise.
7.My father broke his leg while he was skiing in Australia.
8.It wasn’t raining when I woke up yesterday.
9.While I was telling the story she wasn’t listening to me.
10.When you called me I was sleeping.