问个英语问题I will never forget the days which we spent together.I

I will never forget these days (which )we spent together.为什么 I'll never forget the days that/which we spent together. I will never forget the days that we spent together in the c I will never forget the days when we spent together in the c I will never forget the days-----we spent together in the fo I will never forget the days _______ we spent together.  I will never forget the happy days we spent together中间的先行词填什 答对,I will never forget the day ＿＿ we spent together.A.which I will never forget the days (when/that/which)we spent toget 英语问题一个I shall never forget the days which I spent in the cou 英语选择I will never forget the days ______ we spent togetherA w .I’ll never forget the days ______ we spent together in the