Which of the following signs means you can escape from the fire?
—The theatre is far away and there is no bus.—Do you mean it is ______ to take a taxi?
—I hear Tom is leaving.— ____________ why?
—Huang Wei rides a bike very well. Who taught him?—No one. He taught _________.
— What a heavy rain! Will it last long?— ______ . We are getting into the raining season now.
— We finished counting all the birds, Miss Zhang. — ______ ! Boys and girls, let’s have a rest.