the new law will come into effect on the day it is passed中后面 it is passed是个从句吗,什么从句
问题描述：
the new law will come into effect on the day it is passed中后面 it is passed是个从句吗,什么从句
答
定语从句
关系副词when省掉了
the new law will come into effect on the day （when/on which） it is passed
when=on which,which代表前面的day
it is passed on the day
when作为关系副词经常省略的