Помогите пожалуйста с английским

1. Was walking home it started to rain
2.to ski when she broke her leg
3. he was making lunch he suddenly felt ill
4. To laugh loudly while she was telling about her party
5. I was shopping i lost my wallet
6.their first song when all lights went out

Следующее задание

1. It started to snow
2. She broke her arm
3. As he was playing a piano