问题
选择题
I was still sleeping when the fire______, and then it spread quickly.
A．broke out
B．put out
C．came out
D．got out
答案
A
考查动词短语辨析。句意：当火灾发生，接住它就迅速蔓延时，我仍然在睡觉可知此处意思为“发生；爆发”故break out符合。
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