1. When I came home, my little sister was sleeping
2.When Nick came home, his brother was playing with his toys.
3.When he came home, his mother had already cooked dinner.
4. I went to the cinema yesterday.
5. I was going to the cinema when I met you.
6. When my mother came home, I was doing my homework.
7.When we came to my friend's house, he had just left.
8. When father came home, Peter was sleeping.
9. I was doing my homework the whole evening yesterday.