Judging by your last letter, you must have a very wonderful time.

从你上封信看，你一定度过了一段精彩的时光。

youdao

You asked me about Chinese family instructions in your last letter.

你在上一封信中问了我关于中国家庭的教育。

youdao

Thank you for your last letter.

谢谢你的上一封来信。

youdao

After the discussion, put your resignation in a hard-copy letter that includes your last day and any transitional help you've offered.

WSJ: How To Resign on Good Terms

You would appreciate that your letter was sent outside business hours last Friday and therefore, we were only able to read it with the appropriate attention on the 28th day of July 2008.

BBC: Exchange of letters between Thanou and IOC