单项选择题

The announcement is made ______.

A．during the flight
B．before taking off
C．after taking off
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单项选择题
How many seats are there in the restaurant
A．20.
B．10.
C．30.
单项选择题
If you want to have a meal in the restaurant, what should you do first
A．Make a reservation.
B．Telephone them.
C．Just go there.
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