答案：Dear Miss Wang,
I am writing to express my sincere gratitude for your help in my study. Without your help, I would not be among the top three in my class. It is you who are always there standing by me when I fail. You point my mistakes and tell me how to correct them. You always work tirelessly to train my patience. Your continuous encouragement is my greatest motivation.
During the days of your student, I learn a lot. Firstly, your serious attitude towards teaching and students moves me too much. Secondly, I fall in love with English under the influence of you. Finally, you always support me when I meet difficulties and challenges.
I sincerely hope that you can have a sound body and stay happy. In addition, I wonder if you can pay much attention to your health and get more rest.
Again, I sincerely thank you for your kind help.
Yours Sincerely,
Mary
