it depends
each teacherhas a method of preparing exams;
some use dirrect questiond from what you have written in the class
others may ask you about things you haven't written but s/he has mentioned oraly in class
while some teachers gives only 1 question and you can write everything you know about the subject(make sure you understand the question).
so you have to ask the 2nd year students about your teacher and ask them to give you the copies of last yar's exams.
ps: don't you worry, it would be much easier if you pay attention in class and learn by heart all of ypr lessons.
GooD LuCK
saléém.