There are five people in the room, but I know .
A. both of them
B. none of them
C. all of them
D. neither of them
网友回答
A. both of them
(答案→)B. none of them
C. all of them
D. neither of them
解析：both表示两个都，none意思是没有人，多指三个或者三个以上；all表示三个或三个以上都；neither表示两个都不。根据题意，房间里有五个人，但是我一个也不认识。三个以上都不，故选B。