David worked _______ a waiter in a restaurant in his part-time.
Roy made two kites, but _____ of them can fly high in the sky.
Those_____ have caught H1N1 disease must be kept off from us.
---May I ______ your dictionary for a while? ---Sorry, I don't have one.
—What could I get my father for Father’s Day? — _____getting him a tie?
—Goodbye,me dear friends. I’ll miss you a lot. ---So will we. _____