问题补充:
Is he the only one of the students who here just now?
A. is
B. are
C. was
D. were
答案:
A. is
B. are
(答案→)C. was
D. were
解析:C句意:他是唯一一个刚才在这里的学生吗?先行词为the only one of the students,是单数概念,关系代词who在定语从句中作主语,定语从句谓语动词用单数,根据从句中的时间状语“just now”可知,从句应用一般过去时,故选C项。