Then go over questions that you're pretty certain on. Lastly, your questions that you don't know. Work through the one's you don't know through elimination. Don't change answers because recognition comes before recall. Not selected answers are for the rest of the test.
More simple questions are true.
If you're not sure, guess false. It's very difficult to write a question where there are no exceptions. That makes the question false. The choice that is longest with the most qualifying clauses is almost always the correct answer. Use the questions against each other.