1. i broke my arm while I was climbing a tree.
2. Dan was doing a maths test when his phone was ringing.
3. The police catched the thief while he was jumping over the wall.
4. When my mum got home, we didn't do our homework.
5. while I took photos in the town center, I saw my best friend.
6. My friends were swimming in the sea when it started to rain.
