—The charity walk begins _______ 9.00 a.m. Don’t be late. —No problem.
--Would you mind opening the window? It’s too hot.--__________.
—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.