We should do what we can the endangered animals.----Yes it’s our dutythem.A. save; to pro

问题补充：

We should do what we can the endangered animals.

----Yes,it’s our dutythem.

A. save; to protect

B. save; protect

C. to save; protect

Dto save; to protect

答案：

A. save; to protect

B. save; protect

C. to save; protect

(答案→)D. to save; to protect

解析：句意：我们应该尽力挽救濒临灭绝的动物。是的，保护它们是我们的职责。上句考查不定式做定语，下句考查不定式做主语，故选D。