I am applying for a masters program. I have read about the courses, which will be taught at the program. In fact, I think that I have had a lot of such courses in my bachelors program. Does it help to specifically mention that I think that I will do great at the program, because I have taken similar courses before? Also, I have got Bs for some of the courses (actually, the most of my classmates have done similar or worse, the grading was really harsh).