It was brave of the policemen to get over all the difficulties in that case .Which of the following is correct for the underlined word in the sentence?
—Are the beaches in Dalian beautiful? —Sure. They___________ lots of tourists from home and abroad every year.
Today there are two new students in our class. I don’t know ______ of them.
—Is that all? —Yes. That’s all ______ I want to take.
—I have ______ completed all the work. —Congratulations!
What is a machine that is used to cool the air in a room by moving it around?