Day....  month.... Year ....
Dear An!
It has been 3 years since we have not seen each other since you and your family moved to America. How are you these days, how are the two of you, how is the study environment there?
This year I was in grade 9 which is the last year of middle school. You know, graduation is fun and full of memories but it's also sad because... This year without you. Hmm, I'm a bit wordy, aren't I? I am writing this letter to you to inform you that I have decided to study hard to have the opportunity to enter medical school to become a doctor. Who knows, maybe in the future, the two of us on a business trip can meet, An?
PS: The letter is long, I can't continue to write, wish you and your family happiness and health. If you receive a letter, remember to reply to me!
Sentence's best friend
     Vy