I  fell down while I was going down the stairs.

He was driving  very fast when the police stopped him.

It was snowing  when we left  home.

I didn’t answer your call because I was working.

This morning I got up and I made breakfast for everybody.

When I saw her, she was wearing  a really nice purple dress.

Last Saturday we got up  late and we missed the train.

I didn’t say  hello because you were walking  very fast.

I slept   happily when a loud noise woke me up.

What were you doing  when I called  you last night?