Paper 1: Multiple choice
Try and work out the answer to the question without looking at the options (where possible.) This will ensure that you are not distracted with another similar answer. This is not always possible with multiple choice questions as often you have to sieve through the questions to find the correct answer.
As with any multiple choice question, if you don鈥檛 know an answer you should always guess rather than leave it out (you have a 25% chance of getting it correct!). It is usually possible to eliminate some answers and then make a guess on the remaining ones if you have to.