1) You...smoke at the street. a) can't b) mustn't c) must d) have to 2) My brother...swim. a) can b) need to c) mustn't d) has to 3) Teachers..be patient. a) have to b) must c) has to d) mustn't 4) You...speak loudly at the library. a) must b) have to c) mustn't d) can't 5) ... you like a cup of tea? a) Can b) Could c) Must d) Would

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