The athlete fell off his bike when he _____ down the hill.
__________ in thought,he almost ran into the car in front of him.
_____________to somebody,a British person often shakes hands with the stranger.
Do you consider it any good__________the truck again?
We're leaving at six o'clock ,and hope_________ most of the journey by lunch time.
What worried the child most was _________ to visit his mother in the hospital.