We should do everything we can the birds danger. A. to protect; awayB. to protect; inC.

问题补充：

We should do everything we can the birds danger.

A. to protect; away

B. to protect; in

C. protecting; in

D. protected; from

答案：

A. to protect; away

(答案→)B. to protect; in

C. protecting; in

D. protected; from

解析：句意：我们应该尽我们所能保护处于危险中的鸟。In danger处于危险中；to protect the birds in danger是动词不定式短语表目的，用作状语。所以选B。