A: Mum, may I go out to play football for an hour? B: No, you_ . The air outside is not very clean. A. can't B. needn't C. couldn’t
I hate people _________don’t help others when they are in trouble.
—The sweater is very nice. I’ll take it. —But you’d better ________ first. I think it is a little large for you.
– Must I get up early tomorrow morning? – No, _________.
—Mary, could you tell me if your mother ________ our school sports meeting tomorrow? —I think she will come to school if she _________ free.
–Shall we go and ________ hello to the foreign teachers? –Good idea! Let’s go.