Maybe you got nervous during the exam? Seriously, a 45 in an English based subject is amazing, but I've got the feeling you were aiming for a 49-50 - did you get stressed out easily? That was me on Methods, I really shouldn't be complaining however, but a lot of people expected me to get 50 - lost marks and got 49. I agree with you (from another post) that VCAA exams don't really measure ability, as it all comes down to how you go on the actual day.