单项选择题

The people spoken to are______.

A．the people living in the building
B．school children
C．patients
D．firemen
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单项选择题
A fire drill is______.
A．a real fire
B．to drill for fire
C．to put out fire
D．to prepare people for a real fire
单项选择题
During the drill, when people hear the bell, they______.
A．should take any route to go down
B．should not go down by stairs
C．should take the lifts
D．should go down by stairs only
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