Ответ:
2. We were swimming when it began raining.
3. Shw was writing a test when the bell rang.
4. Granny was lying on the sofa when we came.
5. I was taking a shower while my mother was cooking.
6. They were travelling about Europe while Dan was spending holidays in Africa.
7. Tom was dressing at 5 o'clock yesterday.
8. Jill and Jim were going to the theatre when we met them.
Объяснение: