1.What were you doing when he arrived?
2. She was watching TV at two o’clock
3. They were not sleeping at five o’ clock
4. Peter was working when I telephoned
5. Tim was studying German while they were studying French
6. I was not paying attention during the presentation
7. Was Brian talking during the lesson?
8. We were not cooking when he walked in the door
9.Jason was playing the piano at three o’clock yesterday afternoon
10. When was Howard giving the presentation exactly ?