Thanks to the fireman the fire was at once.A. put outB. put offC. put onD. put up

问题补充：

Thanks to the fireman,the fire was at once.

A. put out

B. put off

C. put on

D. put up

答案：

(答案→)A. put out

B. put off

C. put on

D. put up

解析：句意:多亏了消防员，火马上被扑灭了。put out 扑灭；put off 推迟；put on 穿上，上演；put up 张贴，搭建。本题考查的是动词put 的短语，根据句意可知选A。