1. When I left home it was raining heavily.
2. I was watching TV at this time yesterday.
3. When mother came home I was talking on the phone.
4. My parents were watching a detective film on TV when I came into the room.
5. Mike was playing tennis at five o'clock yesterday.
6. Ann was planting flowers in the garden when it began to rain.
7. When the train arrived, we were standing on the platform.
8. It was still snowing when I looked out of the window.
9. Mary was writing letters when the telegram came.
10. The house was quiet. The children were playing computer games.
11. The weather was foggy. Cars were moving slowly.
12. Mike was walking along the street when I saw him yesterday.