Сomplete each sentence with the verbs in brackets. Use the past simple once and the past continuous once in each sentence.
1. While we ... home last night, it ... to rain. (walk/start)
2. I ... my geography homework when you ... . (do/phone)
3. When I ... at the cinema, my friends ... for me. (arrive/wait)
4. Wait ... you ... when you ... the news about the accident? (do/hear)
5. ... you ... to the teacher when she ... this exercise? (listen/explain)

were walking / startedwas doing / phonedarrived / were waitingwere doing / heardwere listening / explained