Dear Mr. Liu:
Hello, thank you very much for taking care of me in the past three years. During these three years, my English scores have been improved to a great extent, but it is not my English scores that have improved me the most. What is more, you taught me some learning methods and values about the world. It is with your help that I gradually put my mind on studying with my heart from the naughty child before. Among all the subjects, my favorite class is the one you taught. Because in class, I feel that I can devote myself to it. I think to a great extent, it is because your teaching methods are different from those of other teachers and are more suitable for me. In class, you don't explain the contents of textbooks too much, but you always like to explain some learning contents outside textbooks. Sometimes you don't care so much about grades, because grades don't seem to be so important to you. Instead, you are translating with us. Whether you can skillfully apply the knowledge you gave us to your life. It is precisely because of this that we can grasp what you taught us so quickly.