Just a quick question, I'm just wondering how could you have the exam script when you have not even sat the exam?
Sometimes for some exams you have something called "Pre-release Material", that's when the exam Board gives you a part of the exam in which you study from, and the exam would be based on that "case-study", the questions would be asked based on that, however it's not easy, nor does it give away any answers, it just gives the student an idea of what the exam's going to be on.
You would usually get a 52 mark question or something when the "Pre-release material" is included.