Witam.
PS → Past Simple, PC → Past Continuous
1. I hurt (PS) my back quite badly while I was playing (PC) football in the park.
2. I was still getting (PC) changed when all my guests turned up (PS).
3. I was cutting (PC) vegetables when the knife slipped (PS). It was very painful.
4. We were working (PC) in Singapore when we first met (PS).
5. We just got (PS) in a café when we were studying (PC) at the same language school.
6. I was sleeping (PC) when I suddenly heard (PS) a loud noise outside my window.
Pozdrawiam,
Antek
