Question

—Where did you pick up the stamp?

—It was at the post office ________ we worked in the summer vacation.

A．that B．where

C．which D．when

 

Answer 1

B

【解析】B 考察定语从句和强调句型。Where引导定语从句 ，在从句做地点状语，修饰先行词the post office，这是强调句的省略形式，句子补充完整是It was at the past office where we worked in the summer vacation that I picked up the stamp。强调的是整个定语从句部分。