i will never forget the day( ) we worked together in London.when/on that/which/while/on which/in that/in which 哪几个可以填?为什么?我看了很多解释还是不怎么懂,求清晰明了点的解释(最好不用什么宾语补语的)

问题描述:

i will never forget the day( ) we worked together in London.
when/on that/which/while/on which/in that/in which 哪几个可以填?为什么?
我看了很多解释还是不怎么懂,求清晰明了点的解释(最好不用什么宾语补语的)