More attention must be paid the endangered animals. A. protectB. to protectC. to protectin

问题补充：

More attention must be paid the endangered animals.

A. protect

B. to protect

C. to protecting

D. protecting

答案：

A. protect

B. to protect

(答案→)C. to protecting

D. protecting

解析：

试题分析:考查动词短语。从结构可知此处是pay attention to短语的被动形式，to为介词，后面要跟名词或动名词，所以C选项正确。句意：我们要更多的关注濒危动物。