—What did you do yesterday?—My brother took two friends of to play chess with us. But I d

问题补充：

—What did you do yesterday?

—My brother took two friends of to play chess with us. But I don’t’ know of them.

A. his, all

B. him, both

C. him, either

D. his, either

答案：

A. his, all

B. him, both

C. him, either

(答案→)D. his, either

解析： all所有都;both两者都;either任何一个.句意:昨天你做了什么?——我的哥哥带着他的两个朋友和我们下棋。但是我不认识他们任何一个人。结合语境可知前文为名词性物主代词做介词宾语，故选D。