past simple
1. I work in a travel agency now. Before that I worked in a department stone.
2.We invited them to our party,but we decided not to come.
3.The police stopped me on my way home last night
4. Jim passed his exam because he studied very hard.
5. Did you go out last night or were you too tired?
past continuous
1. I waved to Helen,but she wasn't looking
2.This time last year I was living in Brazil
3.What were you doing at 11 o'clock last night?
4.It was raining when I got up
5.I hurt my back while I was working in the garden 
past perfect
1.Somebody sang a song. I didn't know it. I hadn't heard it before
2.It was nice to see Daniel again after such a long time. I hadn't seen him for ages.
3.When we got to the station. the train had already gone.
4.When we got home last night,we found out that somebody had broken into flat.
5.The house was dirty. They hadn't cleaned it for weeks.