单选题 He is the only one of the students who ______ a winner of scholarship for three years.
【正确答案】 D
【答案解析】[解析] 考查定语从句中的主谓一致。在“the only one of+复数名词+定语从句”中，定语从句常看成修饰单数名词，定语从句的渭语用单数形式；句子后面的for three years表明应用完成时，故选has been。