1 Fast food restaurants .you don't give a tip(付小费）to Fast food restaurants and coffee shop；
2.Yes I can (You don't wait for the waitress to show you where to sit.)
3.In a family restaurant (your waitress gives you a doggy bag to take your food home)
4.((you need a reservation (预定) and you need to arrive on time)
5.you can refuse it.(You can only refuse it if it tastes bad)
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