Question

 (2011年四川绵阳模拟)Most of________we call geniuses(天才)are successful only because they have made extraordinary efforts.

A．whom                          B．who

C．which                          D．what

Answer 1

解析：选D。分析句子成分可知of后的宾语从句中，动词call后面缺少宾语补足语，故用what引导。