-- I think the waiter has forgotten us. We ________here for over half an hour! -- I think you're right. He probably thinks we have already ordered.
33.The meeting is to begin in a minute, but there are ______50 people in the meeting hall.
32.Customers are asked to make sure that they_____ the right change before leaving the shop.
31.—The earthquake brought about a great loss to Chili. —___________.
30.—Did the winner of the English Contest behave well? —Really. She made a deep ________ on the judges.
29.—We’d better take some extra money ________ we need it. —I can’t agree with you more.