1) You__________ smoke in a hospital.  a) Should b) Have to c) Mustn't 2) They________ wear their uniform everyday in school. a) Have to b) Should c) May 3) You______ arrive on time to school. a) Should b) Have to c) Shouln't 4) Students________ have a good attitude for the class. a) Should b) May c) Must 5) He studied a lot so he_______pass the quiz. a) May b) Have c) mustn't d) '

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