问题描述: I'll never forget the day _____ I first met my best friend.用that还是when? 1个回答 分类:英语 2014-11-30 问题解答: 我来补答 用when,引导从句修饰名词days.I'll never forget the day when I ...其他例子:-I met him the day when I first came to the school.-The days when the Chinese suffered from deadly infectious diseases have all gone.-I still remember the happy days when I was in Europe. 展开全文阅读