1.Mum was cooking a cake when I came home from school.
2.I was dooing my homework when my friend rang me.
3.Dad was going home when rain started.
4.I was reading a book when sister came in.
5.We were playing football when I fell down.
6.I was cleaning my teeth when I saw the spider on the wall.
7.I was sleeping when my alarm clock rang.
8.My friend was going to school when he saw a his brother.