There is only one student_____will surely pass the difficult tes

There is only one student_____will surely pass the difficult test.
A、whose
B、which
C、whom
D、who
【正确答案】：D
【题目解析】：本题考查定语从句。句意：只有一名学生肯定会通过这次难度大的考试。空格处为定语从句的引导词，在从句中作主语，先行词指人，因此应用主格who。故本题选D。