— Did you call on any of your old friends when you returned to your hometown ?
— of them . They were all very busy .
A. Nobody
B. None
C. Both
D. Neither
网友回答
A. Nobody
(答案→)B. None
C. Both
D. Neither
解析：考查代词：A . Nobody没有人，不能接of，B .None（三者以上）没有人，C .Both 两者都 D .Neither两者都不，句意是：你回到家乡时拜访老朋友了吗？-没有，他们都很忙。说明是三者以上都不，选B。