He is the only one of the students who

題目

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

D

在“one of+復數名詞+定語從句”中，定語從句一般被看成修飾復數名詞，因此該從句的謂語用復數形式；在“the only one of+復數名詞+定語從句”中，定語從句常看成修飾單數名詞，從句謂語用單數形式。

This is one of the best novels that have appeared this year.

He was the only one of the boys who was given a prize.

由此可以排除B和C；

“for+時間段”是現在完成時態(tài)的時間狀語，故選D項。