Now that you are a college student, you should learn to be __________ of your parents' help.
Ladies and gentlemen, please remain_____ until the plane has come to a complete stop.
As is often said, a friend is to man_____ water is to fish.
To his disappointment, the opinion he had held____ out wrong.
—My son has got a straight A in all his final exams. — What a ____ boy! Congratulations!
We should try all means to ensure ourselves_____ all possible risks.