Time manage in the exam. Most IELTS candidates run out of time in the third reading section. Each text should take you roughly 20 minutes the examiners will tell you after 20 minutes have passed. Never spend too long on a single question guess the answer or leave it to return to later. Also if you feel you are running out of time, tackle questions like gap-fills before doing easy to guess tasks like YES NO NOT GIVEN questions. Dont forget you also have to have all your answers on your mark sheet by the end of the test. A good tip is to write them on the mark sheet in pencil as you go, correcting where necessary at the end.