给英语外教的一封感谢信用英语50-70字

It's my honor to be one of your students. I learnt too much from you during this period. You taught us not only the knowledge itself, but also the theory of life.It's a great pleasure to listen to your classes. Although I've finished my study here, your vivid classes and all the happy times you spent with us will be kept in my mind for a lifetime. I have never say thanks to you when you were teaching us. But now, I must listen to the voice of my heart and say thanks to you, the greatest people in the world. I'll wish you all the best!