Question

I can't forget the time            the earthquake happened in Yushu.
A. when                  B. which                 C. where

Answer 1

A

试题分析：句意：我忘不了玉树发生地震的时候。句中所缺的是定语从句关系词，用来指代前面的the time，时间；而且在从句中作时间状语，故选A。which指代物，用作主语或宾语；where做地点状语。