单项选择题

A．About 50 pages.
B．It is very long.
C．About two hours.
D．It is two hours.
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单项选择题
A．In a hotel.B．In a bank.C．At a meeting.D．At a post offic
A．In a hotel.
B．In a bank.
C．At a meeting.
D．At a post offic
填空题
Don’t you think their price ______ (reason)
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