【正确答案】Dear Professor Goth Do you still remember me? I am Li Ming from China, This year, I have got my doctor's degree in linguistics at the University of Reading in the United Kingdom. I have made some achievements in my academic research. Today I am writing to you to extend my sincere thanks for your help several years ago. In 2007, I was enrolled in your university and selected linguistics as my specialty. My research interest then was case grammar. I met with many difficulties in my learning process. As my teacher, you encouraged me and enabled me to strengthen my belief in learning well linguistics, a boring subject considered by so many students. I admired you very much because you could always make complicated questions simplified while teaching us in class. Under your tutelage, I got my master's degree in linguistics in 2009. That year, I made up my mind to be a doctoral candidate. I applied to the University of Reading. You wrote a recommendation letter for me to Professor Gorden, the dean of Linguistics Department, the University of Reading. I owe my subsequent academic success to your tutelage and kind help, without which, I would still have been groping my way in the darkness. So I'll never forget you, my respectable professor. Best regards. Yours respectfully Li Ming