题目内容
.We should do what we can do ____protect the animals in danger
A.help B.helping
C.to help D.helps
C
【解析】
试题分析:句意:我们应该做我们能做的事情来保护处于危险之中的动物。To do 不定式表示目的。
考点:考查不定式。
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