Without more wood the fire it would soon go out.A. added toB. adding toC. added upD. add

问题补充：

Without more wood the fire, it would soon go out.

A. added to

B. adding to

C. added up

D. adding up

答案：

(答案→)A. added to

B. adding to

C. added up

D. adding up

解析：考查非谓语动词。句意：没有更多的木头被加入火中，火很快就会熄灭。Wood 与add之间是被动关系，故用过去分词。短语：add to 增加，add up 加起来，所以选A。