We will never forget what happend ( )the afternoon of May 12

My dear.we never know what will happend in the future But I We will arrive____Nanjing____the afternoon of May 1. sorry,forget anything,will be never happend and see u May we never forget each may regret the way we ended,but will never regret what we ha May 5,12 2008 is the day __ i will never forget.( that on wh We will never forget the day,_______ we spent together. They may forget what you said,but they will never forget how I will never forget the day _ we work together. we will never forget the accident 改为被动语态 September 18 ,1931 is the day____ we will never forget I will never forgot what happened in the afternoon 是什么意思