This is How I do to hurry up my professor:
First Letter:
Dear Prof. X,
>
>I am so grateful of you for teaching Biochemistry I. I had a great
>opportunity to be in your Biochem I class in the summer A. I had an A
>and it was really worth an "A". I have learned much of what have been
>covered in every chapter we have been through. Now I am taking Biochem
>II at Boca, and much of the stuffs I learned from Biochem I appears
>again in Biochem II. The knowledge that I learned from your Biochem I
>class will have a great impact for my Pharmacy School later. In fact,
>I am applying to Pharmacy Schools this month such as Nova Southerneast
>University, West Palm Beach Atlantic, and University o Florida. One of
>the most important factors that the school selects student is Letter of
>Recommedation from the Professor. I can't think of noone else but
>You. It will be my pleasure to have your recommendation letter to
>fullfill my greatest qualification. I understand that you are
>extremely busy. Please, feel no trouble for not replying if you are
>busy. Whether I have your recommendation or not, I will always want to
>be in your class again.
Make sure give them sometimes, and always show that you have appreciation for them. Remember, they can write fast, but they can also write craps. You want to make sure that they like you until they finish the letter and summit.