.A distant star is observed to have weight 200 times__________ of the sun .
_____ 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 ?
The bad weather meant ______ the rocket launch (发射) for 48 hours .
She was afraid _____ the dog in case it became dangerous .