Dear Brooke:
You will never guess what I am going to tell you in this letter. I have got the first place in the English speech contest. I should be grateful to the help you gave me. I will never forget how many times you rectified my pronunciations. Without your help, I won't be able to have made so much progress in the oral English. Since you have gone back to America, I can't invite you to dinner. All I wish is good luch to you!
Yours sincerely,
Li Hua