问题
选择题
In case of ___ fire, break the glass and push ___ red button.
A．/, a
B．/, the
C．the, the
D．a. a
答案
答案：B
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In case of ___ fire, break the glass and push ___ red button.
A．/, a
B．/, the
C．the, the
D．a. a
答案：B