The bus hit against a tree in the fog and __________ to the deep valley, with then passengers killed and twenty wounded.
Take care! Accidents _________ happen along this part of the road.
That was because the school bus was _________ by a thick fog.
With so much work _________, they feel worried all the time.
It was at 12 o’clock _________ they came home from school.
I don’t have to do it and _________ do you. We’re both too busy.