【正确答案】July 1st, 2004
Dear Professor Zhang,
How time flies! It has already been four years since I started college. I will be leaving our college in the next few days. I just want to express my thanks to you for all your help and care from the bottom of my heart.
During my four years here, you have given me a lot of care not only about my studies, but also my life. I have learned from you not only knowledge but also how to be a man. Meanwhile, I have been greatly influenced by your lectures and the way you carry yourself in front of others.
I am very confident that I will be successful because of your great help, which I promise to repay in the near future.
Yours sincerely,
Li Ming