单项选择题

A．At an airport.
B．At a railway station
C．At a bus stop.
D．In a waiting room.
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单项选择题
A．Submarines.B．Ships and planes.C．Trains and cars.D．Florida and Boston.
A．Submarines.
B．Ships and planes.
C．Trains and cars.
D．Florida and Boston.
填空题
employment改为employment。
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