单项选择题
A．Tips are not usually included in the total check. B．A 15 percent tip in large cities indicates satisfactory service. C．People tip waiters and waitresses. D．People always put tips on the tabl
A．a dinner in the evening B．a big noon meal C．a big lunch on Sunday D．a supper on Sunday
A．American people like sitting with people they don't know. B．Hostess always seat a small group at a large table. C．American people never sit with people they don't know. D．American people would not light a cigarette if the people who sit at the same table mind their smokin