问题
选择题
He is the only one of the students who __________a winner of scholarship for three years.
A．is
B．are
C．have been
D．has been
答案
答案：D
题目分析：考查主谓一致。句中的先行词为the only one，在定语从句中作主语，故谓语动词用单数。根据句中的时间状语for three years，故时态用现在完成时。句意：他是唯一一位三年奖学金获得者的学生。故D正确。
