You ____ speak rudely to waiters., should not, ought to, You ___ order food containing nuts if you have a serious nut allergy., mustn't, don't have to, You _____ send something back just because you don't like it., ought to, ought not to, You ____ book a table in advance at really popular restaurants., have to, needn't, You _____ order things which aren't on the menu., don't need to, shouldn't, You _____ finish everything on your plate., mustn't, don't have to, You _____ leave a tip if the service was mediocre., needn't, should

6A Intermediate Plus

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