我很抱歉 这么久没有回信'

i'msosorryfornotsolvingthisproblemforsuchalongtime

Dearfriend:Thankyouforyourreply.Andalsoforyouconcernaboutthewellbeingofmyfamilyandcompany.Everthingi

I'msorrytoreplytoyousolate,mydearoldfriend.Isyourvacationovernow?Areyoubacktowork?Wishyouandyourfami

I’msorryforkeepingyouwaiting．很抱歉,让你久等了.I’msorrytohavekeptyouwaiting.对不起,让你久等了.

答案：填keepyouwaiting即：I'msorrytokeepyouwaitingsolong.解析：keepsb.doingsth使某人一直做某事有不明白的请继续追问,

I'msorryfordisappearingforsolong.

原来这是个误会啊.Itwasamisunderstanding很抱歉这么晚才给你回信Sorryformylatereply/response

I'msorrryreplyyousolate.

Iamsosorrytomailyoubacksolate.Iamafraidyoumightbecomeworried.

Gladtoreceiveyourreply.Sorryfornotwriteyoubackontime.Thereismyschoolreportintheaccessories

IamsorrythatIhaven'twrittentoyousoon.ThesedaysIambusywithmyworksoIforgettowritetoyou.Youdidn'tsayany

howdoyoudo?i'msosorrythatihaven'trespondedyouforalongtime.再问：你的回答完美的解决了我的问题，谢谢！

额是不是想说下班晚了?所以回短信晚了?Iworkverylateyesterday,andIamsorrytoreplyyousolate晕明白了.楼主是不是做外贸业务的?如果是的话,这句话就没有必要

DearXXX,Iamverysorryforthisprettylateresponse!Ihavebeenverybusythissemesteranddonothavemuchtimeonlin

Howareyoudoing?Ifeelawefullysorryforhavingnotansweredyourpreviousletter.Ihavebeeninbadmoodrecetantly

1sorrysolongtoansweryourletter.2Iamsorrysolongtocallyoubackyouforgiven3message/replytoamessageyoubac

iamsorrythatiwrotebackaftersuchalongtime.

Sorryfordelayingtoreply.Iwasoutforbusiness,sothatIdidn'tcheckyouremailintime.Regardingthematterthaty

I'mverysorrythatitisdelayedforsuchalongtime.(指代事情用it,时间段用for.)

Iamsorryforsuchalongtimedidnotgiveyousende-mailDonotworry,Iamverywell,thankyouforyourconcern