关系副词引导的限制性定语从句 — 英语词汇题
题目
用关系副词 when、where 或 why 填空：1. I still remember the day ______ we first learned about the development of the Chinese writing system. 2. This is the museum ______ many ancient Chinese characters are kept. 3. Nobody knows the reason ______ he is so interested in world languages.