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
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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
单项选择题
According to the passage, one misses most about the world when one______.
A．is blind
B．is deaf
C．has no senses of taste and touch
D．has no senses of balance and motion
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