Since you became my English teacher three years ago, you've always been working hard.
I won't forget how interesting your lessons and how friendly you are.
You're strict with us in study and also take care of us kindly. All my classmates agree we get on well with each other for these years. I still remember when I failed in an exam, you encouraged me to keep trying. When I had trouble in life, you told me to be brave.
Because of your help, many students, including me, are more and more interested in English and make much progress, too. You have given me so much.
Thank you again for what you've done for us! All the best to you!
Yours,
X X X