______ the fire broke out, three fire engines were rushed to the spot.
__________ in thought,he almost ran into the car in front of him.
_____________to somebody,a British person often shakes hands with the stranger.
D0 you consider it any good__________the truck again?
The bad weather meant__________ the rocket launch(发射)for 48 hours,.
She was afraid __________ the dog in case it became dangerous.