Поставьте глаголы в Past simple and Past continuous

Привет! Давай вместе разберёмся с этими предложениями. Мы должны вставить глаголы в Past Simple и Past Continuous. Вот так можно это сделать:

1. Peter was staying at a seaside hotel when he met his friend.
2. While I was having lunch the phone rang.
3. When you called on the telephone Mary was doing her homework.
4. She noticed many spelling mistakes.
5. She was going to bed when suddenly she saw a mouse.
6. We were sitting down to dinner when the doorbell rang.
7. While he was sleeping, the doctor arrived.
8. What was she wanting when she visited you yesterday?

Если что-то непонятно, спрашивай!