单项选择题

A．About the cost of living.
B．About pollution.
C．About their safety.
D．About traffic jams.
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单项选择题
A．He is not sure there will be space for Simon.B．He wants to make sure that the weather is clear.C．He does not know if they can get a room.D．He will ask Simon what he wants.
A．He is not sure there will be space for Simon.
B．He wants to make sure that the weather is clear.
C．He does not know if they can get a room.
D．He will ask Simon what he wants.
单项选择题
A．From the name of the horse first used to carry mails.B．From the name of the city where this service first started.C．From the name of the office along the road.D．From the name of the stopping places for messengers
A．From the name of the horse first used to carry mails.
B．From the name of the city where this service first started.
C．From the name of the office along the road.
D．From the name of the stopping places for messengers
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