1. We were having breakfast when the mailman arrived

2. While everyone was sleeping, Paul watched TV

3. I was dreaming about a long vacation when the alarm clock went off

4. While I was practising the piano late last night, I heard a strange noise

5. The sheep were grazing in the field when they were  scared by the noise

6. What were you doing when the earthquake happened yesterday?

7. I was running to catch the bus when I was Jim

8. When you met Jame last night, what was he wearing?

9. Some people were chatting while others were playing games at the party last night

10. It was raining at time yesterday, so we candeled the barbecue