We should do something the animals in danger being killed.A. to protect fromB. protect

问题补充：

We should do something the animals in danger being killed.

A. to protect, from

B. protect, from

C. to protect, for

D. protect, for

答案：

(答案→)A. to protect, from

B. protect, from

C. to protect, for

D. protect, for

解析：句意:我们应该采取一些措施来保护处在危险中的动物不被杀死。第一空我们应该用动词不定式来在句中做目的状语；第二空考查的是句型protect sb. from doing sth. 保护某人不…。故选A。