I am well_____of the problems brought about by this new road----it runs right past my school.
It was some time _____ we realized the truth.
Having a trip abroad is certainly good for the old couple, but it remains _____ whether they will enjoy it.
—What does this sentence mean ? --- It seems to me that it ________.
Don’t leave matches or cigarettes on the table within ____ of little children.
Dad is used to smoking and drinking. There is no chance ____ I’m able to talk him into ______.