Dear Miss Zhang,
As the gratuation is driving near,I feel more grateful for you.In the past team,you teach me a lot.Your encouragement really help me make progress.
Last term,I have some problems in my learning English,you give me advise and help me solve the problem patiently.That really moved me.
I think you're almost perfrct except to be a little serious.If you could have more smile in the class.that would be better.
All in all,thanks for all the help you give me in the past team. ,Best wishes
Sun Mei