Fred entered without knocking and, very out of breath, sank _______ a chair.
—The play is seldom put on here,is it?—_________.Only once three weeks ago.
—Do you think I could borrow your dictionary?—__________.
—What about having a drink?—_________.
—Hello,may I have an appointment with the headmaster?—_______.
—I’m entering for the 400-meter race.—__________.