1. I was watching television when the phone rang, (watch)
2. When the ambulance came, we carried him into it. (carry)
3. She was driving her car when she suddenly felt ill. (drive)
4. When he saw me: he was painting the wall. (M)
5. We were listening to the radio when it suddenly stopped working, (listen)
6. Why were you playing cards when he walked into the office? (you play)
7. Did they thank you when you gave them the money? (they thank)
8. Were you smoking when you turned on the gas? (you smoke)
9. When I arrived, they said hello but continued working, (say)
10. When I got to the hospital, she was sitting in the waiting room, (sit)