Question

 (2011年四川綿陽模擬)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：選D。分析句子成分可知of后的賓語從句中，動詞call后面缺少賓語補足語，故用what引導。