—Do I need to give a tip if I eat at a fast food restaurant in the United States?—Yes it

问题补充：

—Do I need to give a tip if I eat at a fast food restaurant in the United States?

—Yes , it’s a commonto tip waiters in a restaurant.

A. sense

B. custom

C. method

D. practice

答案：

A. sense

B. custom

C. method

(答案→)D. practice

解析：名词辨析。A感觉，知觉；B风俗；C方法；D实践，做法；句意：在餐厅里给服务员小费是常见的做法。