Thanks always. I can learn not only in the class but also after the class, meaning your lesson note sometimes gives me a chance to study more. For example, when I find some expressions or words that I am not familiar with, then I look into a dictionary and I get to figure out what you're going to say. It's a good process of self-studying. I really admire your wide voabs and knowledge about English. Well, I wonder if I commended you too much... Ricky.