I will never forget the day ___ I organized a birthday party for my motherA why B when C that D where答案是WHICH

问题描述:

I will never forget the day ___ I organized a birthday party for my mother
A why B when C that D where
答案是WHICH

答案是when.因为这是状语从句

先行词是名词 而且有个the

which指代的是前面的the day!