Simple past VS Past Continuous Don't use contractions

Решение:

1. When I was doing the washing-up, I broke a plate.
2. While Tom was playing the piano, his mother was doing the washing-up.
3. He drank some juice and then he ate a few chips.
4. I was having dinner when I suddenly heard a loud bang.
5. When my father was working in the garden, an old friend passed by to see him.
6. She went to school, took out her textbook and began to learn.
7. When it started to rain, our dog wanted to come inside.