He is the only student I’ve ever met could answer this question .A. who ; /B. / ; whomC.

问题补充：

He is the only student I’ve ever met could answer this question .

A. who ; /

B. / ; whom

C. whom ; /

D. / ; who

答案：

A. who ; /

B. / ; whom

C. whom ; /

(答案→)D. / ; who

解析：考查定语从句。第一空student被the only修饰，从句中缺少宾语，所以关系代词用that/whom,作宾语时可省略。第二空从句中缺少主语，所以用who，故选D。