As they usually receive the same score in standardized examinations there is often disagreement as to ____ is the better student, Bob or Helen.
A.which B.who C.whom D.whose
答案选B (who)。
网友可参读 http://www.yygrammar.com/Article/201101/1909.html
如果觉得我的回答对您有用,请随意打赏。你的支持将鼓励我继续创作!