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【课堂练习】 ( )1.(2012年南平)I cant stop smoking, doctor. For your health, Im afraid you ________. A.must B.can C.may ( )2.(2012年南平)Dont ________ too late, or youll feel tired tomorrow. A.wake up B.put up C.stay up ( )3.(2012年大庆)May we leave the classroom now? No, you________.You________ to leave until the bell rings. A.mustn are allowed B.dont have to; are supposed C.needn arent allowed D.can arent supposed ( )4.(2012年大庆)We are going to ________ the meeting till tomorrow. A.put on B.put up C.put off D.put down ( )5.(2012年淮安)Its cold outside.Youd better ________ your coat and scarf. A.work out B.put out C.have on D.put on ( )6.(2012年黄石)We should learn how to ________ well with people around us. A.get along B.get down C.get to D.get up ( )7.(2012年黄石)Is Maria knocking at the door? It ________ be her.She is in Australia now. A.may not B.neednt | 
