請幫忙翻譯為英文

問題: Please confirm to me you have read the attached JD by 11 May.
I suggest the Q/A as follows, a more formal manner:
Please confirm that you have read the attached JD by 11 May.
Answer:
I hereby confirmed that I had read the attached JD thoroughly on 11th May.

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如果我想答先已經 read 咗, 應該怎樣答啦?
中文：我已經閱讀附件
以上回答內容是本人經驗(Vinci Cheung)，不可能於任何網頁或書本上找到！版權所有，未經許可，請勿複製作任何用途!!!
英文：I .have read the .attachment.

The attachment had already been read.

Please confirm if u read the attached JD by 11 May or not.
I have read the attachment before.

I had already read the attached file.