Narrative tenses

My boss left the office before I came back.

When I came back, my boss........

I did my homework and then I met with my friends.

Before I met with my friends, I .........

Sue cleaned the house, but then she fell asleep on the sofa.

After Sue.........., she fell asleep on the sofa.

Kate took a painkiller and then she felt much better.

When Kate had taken a painkiller, she.........

Peter was skiing in Austria and met his old friend, Tom.

Peter met his old friend, Tom while ................ in Austria.

Chris went out and then Sheila got back.

By the time Sheila got back, Chris.............