The firemen the fire as soon as they got to burning buildings.A. put upB. put awayC. put o

问题补充：

The firemen the fire as soon as they got to burning buildings.

A. put up

B. put away

C. put out

D. put down

答案：

A. put up

B. put away

(答案→)C. put out

D. put down

解析：根据四个被选的动词词组的意思，选择C，为熄灭火的意思。