没写作业的英语道歉信

Dear Mrs.Zhang
　　I’m writing to ask you to excuse me for not being able to keep our appointment.I do know that this is very impolite and must have caused you much trouble.
　　I do reckon that at present any explanation is pale and futile.However I do not want you to misunderstand me.On my way to your office,an old lady suddenly fainted due to heart attack on the bus.I stopped a taxi and sent her into a nearby hospital.I stayed there until her son came,which spoiled our appointment.
　　I am aware that our appointment is of importance.I do hope that you would be kind enough to spare your valuable to meet me.
　　I am looking forward to hearing from you.
　　　　　　　　　　　　　　　　　　　　　　　　　　Sincerely Yours

　　dear sir/madam, 这一句要看教师是男的还是女的而定 i am awfully sorry for my absence to the class. becuase i have to pick up one of my classmates from the urban area, i left the message to my roommate to ask for the leave. he didnt notice the message and as a result i have to write this letter to express my apologize. furthermore, i am really interested in english and you are my favorite teacher. i am aware of the importance of english and please trust me if it is possible i will undoubtedly attend every english class. it is a pity that i didnt arrange everything well and you may be disappointed with my absence. here, i promise i wont miss any class any longer except that my leave application has been approved. i am not quite sure whether you will forgive me or not and i hope you will give me one more chance to prove my interest to your class. yours sincerely xx