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
People in the plane can ______.
A． have a good sleep
B． have some small gifts
C． buy some duty-free things
单项选择题
Can people smoke in the plane
[A] No, they can't.
B. Yes, but only in some areas of the plane.
C. Yes, but only in the cabin.
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