【答案解析】Dear Mr. Green,
I am sorry to inform you by this letter that I plan to resign from my present job next month. The main reason is that I will move to Dalian to live there permanently with my family, as Dalian is my hometown.
Looking back upon my six years" experience in this company, I have had a very happy and enjoyable time working here with you and other colleagues. I have received lots of help and have learnt so much from you.
Please accept my sincere gratitude, as well as my regret for not being able to work here any longer.
Yours faithfully,
Li Ming