Hello again~ Gwen. I''ve come up with many things to tell you and ask for you! First of all, I wonder is there any greeting expressions aside from "hello" and "hi". I assume there are many. I''m now kind of sick of using "hello" in every greeting. You asked me what are the easiest and the most difficult part of studying English. Well.. I see the Listening is the most difficult. That''s because I..