That is the day _____I will never forget.A.which B.on which C.in whichD.when 并说明理由
问题描述：
That is the day _____I will never forget.
A.which B.on which C.in whichD.when 并说明理由
答
which
答
a
答
定语从句,which 做forget the 宾语,即：I will never forget the day.