英语作文 一封道歉信,请大家帮忙修改,顺便评分

Marketing Manager of IBM
Dear Mr Martin Hill:
I am terribly(terrible) sorry that I failed in replying(to reply) two lists of quotation for (a little while ago)the supply of computer keyboard in time a little while ago.That is because of (owing to) the fact that I found my office was decorated without being told(telling me) the exact time.I had to look over the process of decoration(decoratetion),and I (will)continued looking(to look)over them in the following several days.应该用过去时吧）So my work was delayed(delaied).
I really regret that I haven't replied(reply) lists in time,and that I gave you some inconvenience(s).I have prepared the two lists for(to) you and I am sending(will send)(写这封信的时候马上就寄出去了 将来时不合适）it to you (it) with this letter.Besides,I sincerely hope that you can understand me(my situation) and accept my apology for any inconvenience caused.
Sincerely yours,
paula
好歹给点分吧- -