You can't. Generally, if you can master the methods and skills of brushing questions, you can pass the subtropical high school exam. It will only improve the cognition of practice. You can try to understand and analyze the exercises you don't understand when you brush the exercises, so that you can really understand the mistakes in this exercise. It is to get to the bottom of the matter, so as to improve the progress of brushing the questions, which will affect the progress of your exam.