Past Cont. vs Past Simple

She was having a beautiful dream ................... the alarm clock rang. (when/while)

He .......... his leg while he was skating. (broke / was breaking)

George ........... off the ladder while he was painting. (fell / was falling)

I .......... the match last night when the electricity went off. (watched / was watching)

Emma ......... her exams last week. (was passing / passed)

It .......... when I left the office today. (was snowing / snowed)

He .......... to music when I entered the room. (listened / was listening)

It ............ when we left the shopping mall. (rained / was raining)

Clare ............ to Spain last month. (went / was going)

......... we saw the dog on the road, we were driving to the forest. (When / While)

It was cold when we ............ the house yesterday. (was leaving/ left)

I .......... in bed last night when I heard a strange noise. (read / was reading)