-We __________ play football on the busy road, it’s dangerous. -I agree with you. We should keep safe. A. needn’t B. mustn’t C. may not
—She has never read this book, __________ she? —__________, so she knows little about it.
— Didyouandyourparents enjoy your stay in San Yalast week? —Yeah, __________wehad!
--What's up? --I can't stand the noise outside. It's nearly________ me mad.
He doesn't tell me when he_______ . I'll telephone you as soon as he______.
——Who is knocking at the door? ——It ______ Mr. Black, because he_______Washington.