I think Tom, as the head of a big department, should either study regularly or ________ his job.
—I had a great time in the summer holidays.We went scuba-diving in Hawaii.—Wow!________
—Thank you very much for helping me with the luggage.—________.
—Do you mind if I open the window?—________.Go ahead,please.
—What's the price of the shirt?—Two hundred dollars.—I'm afraid ________.
—What's the man talking with Mr.Li over there?—________.