1.     They------were fighting------------------- when I arrived.

2.     She --------was cooking------a meal when the lights went out.

3.     What ---were you doing----------when I phoned you?

4.     When I arrived, everybody ---was sleeping---------------.

5.     My mother ----was not watching----V. when I came.

6.     The pupils---------were not listening--------.

7.     The dog ---was eating-a bone in the garden when it saw a cat.

8.     Why ---were you laughing-when I was talking?

9.     -Were you having-dinner when the police arrived?

10. My father –was reading-a newspaper when the bell rang.