Раскройте скобки,выбрав Past Simple или Past Continuous.
1.What(you see) while you(wait) for the bus?
2.Where(you go) when your car(break) down?
3.Julie (meet) Peter when she (walk) in the park.

what you see while you waited for the bus?where you went when your car break down?Julie met Peter when she walk in the park