—Is that the small town you often refer to? —Right just the one you know I used to work

问题补充：

—Is that the small town you often refer to?

—Right, just the one you know I used to work for years.

A. that

B. which

C. where

D. what

答案：

A. that

B. which

(答案→)C. where

D. what

解析：该题有特点：一是区分关系代词和关系副词的用法，这里先行词the one 在从句中充当的是I used to work 的地点状语，因此需要由关系副词引导，而不能选择关系代词；二是题干设计颇有干扰性，命题者在定语从句部分加入了“you know“ 这一插入语，很容易让学生误以为先行词在从句中作know 的宾语而选择了关系代词。