[简答]  1．Iworkinashop,andI 空白have tobeverypolitetothecustomers.2．You  空白mustn’t smokeinthegarage–it’sdangerous.3．Atworkweare  空白allowed to haveateabreakinthemorningandafternoon.4．It’smysister’sbirthdaytomorrow–I  空白must getheracard.5．I’mateacher,soI  空白don’t have to wearauniformatwork.