Wise people believe only half of what they hear — wiser ones kno

Wise people believe only half of what they hear — wiser ones know （）half to believe.


A、

what 


B、

which


C、

that 


D、

such


【正确答案】：B
【题目解析】：

智者只相信他们听到的一半——智者知道该相信哪一半。这里的“哪一半”一般用“which half”来翻译，做定语从句。