1) You… be physically fit to be a fire-fighter a) can b) have to c) need 2) A doctor… often work long hours and night shifts a) must b) can c) can’t 3) a teacher… look smart or wear a suit to work a) mustn’t b) doesn’t need to c) can’t 4) self-employed people… take a holiday any time they choose a) need to b) have to c) can 5) a journalist… write things which are not true a) needn’t b) doesn’t have to c) mustn’t 6) Office workers usually… take many breaks during the day a) can’t b) don’t have to c) needn’t

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