1. When I phoned my friends, they were playing monopoly.
2. Yesterday at six I was preparing dinner.
3. The kids were playing in the garden when it suddenly began to rain.
4. I was practicing the guitar when he came home.
5. We weren't cycling all day.
6. While Alan was working in his room, his friends were swimming in the pool.
7. I tried to tell them the truth but they weren't listening.
8. What were you doing yesterday?
9. Most of the time we were sitting in the park.
10. I was listening to the radio while my sister was watching TV.
11. When I arrived, they were playing cards.
12. We were studying English yesterday at 4:00 pm .