mock is not that difficult, more or less same format as actual exam. make sure you have covered the end of chapters practice in the cirruculum. last year there were some tricky questions (floater and inverse floater) in the fixed income that appeared in the end of chapter exam that it was not taught in class.
hey, are u working in China or States? Your english is very good. what do u do for living if u don't mind me ask? just want to make friends if u don't mind. I am working in U.S. right now but will transfer back to Shanghai in 2 years.