第1个回答 2013-10-28
I‘m really sorry to reply you so late.
或者I feel bad making you to wait for my response.
第2个回答 2013-10-28
I'm really sorry so late reply to you本回答被提问者采纳
第3个回答 2013-10-28
I feel really sorry that I reply you so late.
第4个回答 2013-10-28
I'm really sorry to reply you so late