The number of people invited ______ fifty, but a number of them _______ absent for different reasons.
I think the doctor is able to care of _____ is the matter with your son .
Let us not waste ______ time we have left .
_____ 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 ?