Question

I’ve become good friends with several of the students ___helped me in the English speech contest last year.

1. A.
   who
2. B.
   where
3. C.
   when
4. D.
   which

Answer 1

A
试题分析：考查定语从句。本定语从句的先行词是students, who指代先行词在句中做主语。句意：我和去年的演讲比赛中帮我的几个学生成了好朋友。故A正确。
考点：考查定语从句
点评：定语从句的关键在于分析句子成分，如果句子很完整就使用冠词副词；如果句子中缺少主语，宾语，表语或者定语则使用关系代词