Who can help me to modify my article.

Dear Sir or Madam,
I got shocked（shock错了） by your absurd accusation when I read your letter.
Firstly,I can not（can't 好点） smoke because of asthma and I hate smoking （anywhere前不要in ）anywhere.
Secondly,I don't know who have seen（对已经产生影响,建议用现在完成时） me not wearing（看见时是正在发生的 要用进行时） shoes.I'm not used to wearing nothing on my feet in public.
Finally,I hope that you can find out who broke these rules and regulations in gym as soon as possible.（用了hope that从句）
Best regards,
Yours
David.