Помогите пожалуйста дам 50 балловComplete the sentences using the past simple

Помогите пожалуйста дам 50 баллов
Complete the sentences using the past simple or past continuous form of the verbs
1.They _____ (swim) across the river when the boat _______ (arrive)
2.Anara ________ (have) a bad accident when she ______ (ski) down a mountain in the Urals
3.__________ Ablai _________ (llisten) when the teacher ________ (ask)him a guestion?
4.We ________ (stop) at the Great Wall when we ________ (travel) through China.
5.You _________ (not look) at the road when you ___________ (fall off) your mountain bike.
6._________ you ________ (drive) when the storm _____ (start)?