10речень в past continion

1. I was writing a letter when the phone rang.2. They were playing football when the rain started.3. We were reading a book while waiting for our friend.4. Yesterday at 8 in the evening, I was cooking dinner.5. They were studying Spanish when I saw them.6. You were watching TV when I called you.7. We were waiting for the bus when it broke down.8. She was sewing new clothes while listening to music.9. At this time yesterday, I was studying math.10. I was walking in the park when I saw an interesting exhibition.