Question

We should do what we can ___ the endangered animals.
----Yes,it’s our duty       them.

A．save; to protect	B．save; protect
C．to save; protect	D． to save; to protect

Answer 1

D

试题分析：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。