You have been working abroad for several months but now need to return to your country. Write a letter to your manager. In your letter explain why you need to leave describe what you enjoyed about your job tell him/her when you will leave

Dear Mr Smith, I regret to inform you that I am unable to continue working as a member of your team as I must return to my country to complete a master’s degree. I have been fortunate enough to be accepted into one of the top universities in my country, and this is an opportunity […]