Complete the sentences with the past simple or past progressive.
1.When they ...................... to school, they .................... John (walk / see)
2.When I .................. in the kitchen ,Mary.................................. (help / come)
3.When Jane .................... in the garden , he uncle .................... (work / call)
4.When she ....................... her hair ,the baby ....................................... to cry.(wash / begin)
5.A strong wind ............................ when the plane ........................... (blow / land)