we will never forget june 1996 in which we were born

we will never forget june 1996 in which we were born I will never forget the day (which/that) we spent in Beijing It's ____that we will never forget. I will never forget the mountain village which we visited la 一高一英语改错题i will never forget the days which we had a good tim 改错：I will never forget the days which we had a good time tog I will never forget the days (when/that/which)we worked toge I will never forget these days (which )we spent together.为什么 I will never forget the days (when/that/which)we spent toget I will never forget the day which/that we spent inthesummerc 答对,I will never forget the day ＿＿ we spent together.A.which We will never forget the day,_______ we spent together.