I was watching TV when she called.
She was writing a letter when the telephone rang.
While we were having a picnic, it began to rain.
What were you doing when the earthquake started?
I was listening to my iPod, so I didn't hear the fire alarm.
You didn't listen to me when I told you to turn off the oven.
Someone stole John's car while he was sleeping last night.
Sammy was waiting for us when we got off the plane.
When I was writing an E-mail, the computer suddenly shut down.
What were you doing when you broke your leg? I'm skiing.