— How well the girl sings! — Yes, she has a very sweet ________.A. voice B. sound C. noise
—Listen ! Helen is singing in the next room.—It __________ be Helen. She is in Tianjin now.
_________ exciting match it is! Wonderful players and wonderful teams!
Which of the following signs means you can escape from the fire?
Don’t shout to the boy. It __________rude.
--__________ you see the traffic accident near the park yesterday? -- No, I didn’t.