30.The novels written by the author sell best, but five years ago no one could have imagined how great a role he________in the literary world.
I hate _______ when young people speak to the elderly in a rude way.
—How long are you staying there?— _____depends.
______was known to them all that William had broken his promise______ he would give each of them a gift.
—When can we come to visit you?—Anytime you feel like .
—He got his first book published. It turned out to be a bestseller. —When was _____? —_____ was in 2000 when he was still in college.