国家开放大学 / 综合英语（2）
正确率：100%
People who dine in a New York restaurant _ _ _ _ _ .
a.are not expected to give any tip to the waiter or waitress
b.had better tip more than 15% so as not to be shamed
c. may be looked down upon when offering a considerable tip
d.are thought of as generous if they tip 15%
a.are not expected to give any tip to the waiter or waitress
b.had better tip more than 15% so as not to be shamed
c. may be looked down upon when offering a considerable tip
d.are thought of as generous if they tip 15%
参考答案：
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