【题目】As a student of Senior Three, he has very little free time _________ he can spend developing his own interest.
A. when B. in which
C. at which D. that
在线课程【答案】D
【解析】
试题分析：考察定语从句关系词。定语从句主语为he，谓语是 can spend，宾语补足语是developing his own interest，缺少宾语，所以定语从句关系词为关系代词，四个选项中只有D是关系代词，故选D。该句意思为：作为高三的学生，他几乎没有时间用于发展自己的兴趣爱好。