Open the brackets using Past Simple or Past Progressive
1. Peter (stay) at a seaside hotel on holiday when he (meet) his friend.
2. While I (have) lunch the sun (come) out again.
3. We (sit) down to dinner when the doorbell (ring).
4. When Mary (read) the letter she (notice) many spelling mistakes.
5. Mary’s grandfather (hurt) his back while he (dig) in the vegetable garden yesterday.
6. She (go) to bed when suddenly she (see) a mouse.
7. While he (sleep), the doctor (arrive).
8. I (read) when he (called).
9. They (wait) for the bus when I (see) them.
10. Somebody (knock) on the front door as I (have) breakfast.