1. the ) dinner when the ) out.
2.) to the cinema yesterday.
3.the tv ) before i ) home.
4. his clothes were because ) his car for half an hour.

1. The girl was cooking dinner when the lights went out.

2. Kate went to the cinema yesterday.

3. The TV program had begun before I came home.

4. His clothes were dirty because he had been reparing his car for half an hour.