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单项选择题

When at a terminal for public transportation, never leave your luggage unattended.

A. Don't leave your luggage at a terminal.
B. Don't get far away from your luggage.
C. Take good care of your luggage at a terminal.
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单项选择题DELAYS EXPECTED ON COMMUTER TRAIN SERVICES.

A. People traveling to work by train may be late.
B. There are problems with high speed trains.
C. Due to problems, all trains will be late.

单项选择题Customer Help Line Ring us any day, 8:30 am — 5:30 pm.First 10 minutes free, then calls charged at local rates.The cost of calls depends on

A． what time of day it is.
B． how long they last.
C． where the caller lives.