We could not understand them because of us know their language.A. nobodyB. noneC. no oneD.

问题补充：

We could not understand them because of us know their language.

A. nobody

B. none

C. no one

D. all

答案：

A. nobody

(答案→)B. none

C. no one

D. all

解析：B “我们都不理解他们，因为我们没有一个人听得懂他们的语言。”句意表示否定，只有B、C表示否定，但常与of连用的是none“一个也没有”。故选B。