用关系词When连接句子：The day are gone ,During those days we used "foreign oil".
问题描述：
用关系词When连接句子：The day are gone ,During those days we used "foreign oil".
答
The days are gone when we used "foreign oil".
when 引导的是定语从句.用关系词Where 连接句子：Li Fang lives in that street,Do you know the street?Do you know the street where LiFang lives ?