Junior, I can tell you that this is just a sign of your nervousness. The college entrance examination is very important for most candidates, so most people will feel nervous during the college entrance examination, whether you think so or not, and this kind of nervousness will make you doubt. How can you forget to smear the college entrance examination at ordinary times? And after the college entrance examination, the teacher will make a tour. Anyone who doesn't have a card will be reminded by the teacher, who will usually say loudly in the examination room that the examination time is coming to an end. Students, please check whether you have finished drawing the answer sheet, so the probability of not drawing the card is very, very low, almost impossible. Rest assured. There will be an exam tomorrow. Good luck.