When you pick up your【B8】luggage at an airport, you may tip the person who【B9】it to the taxi. He or she usually expects $0.50, a bag for this【B10】. A taxi may have one meter that【B11】the cost of the trip and another that shows a fixed【B12】, usually about $0.50, for "extras". However, the taxi driver usually expects a tip in【B13】to the "extra", especially if he or she【B14】your suitcase. This tip should be about 15 percent of the fare. In hotels it is customary to give something to the porter who【B15】you and your room. In case of doubt, 50c for each bag is satisfactory. In a【B16】you generally leave about 15 percent of the【B17】on the table as a tip for the person who has served you. If the【B18】is small, a tip is not usually expected.
The practice of tipping for other services is even more【B19】. In large cities one usually tips the barber, and sometimes the attendant in a restroom in a hotel.【B20】to the custom in some European countries, one does not tip the usher in a theater.
【B1】
A.added
B.excluded
C.considered
D.included
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