It took the firemen six hours to the fire.A. put upB. put downC. put onD. put out

问题补充：

It took the firemen six hours to the fire.

A. put up

B. put down

C. put on

D. put out

答案：

A. put up

B. put down

C. put on

(答案→)D. put out

解析：根据动词的具体的意思，本题需要的要为熄灭的意思，故选D

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