Помогите раскрыть скобки с помощью past simple и past continious
13 "What you (to do) when you (to break) your leg?" "i ( to snowboard)."
14. I (to study) while he (to make) dinner
15. While Ellen ( to read), Tim (to watch) television.
16. Every Sunday last year i (to be) in church
17. When she (to be) young she usually (to go) to work on foot
18. When i (to be) a teenager i (to visit) a lot of dances