In order to pass the final exam, you must make up lessons. Most of the time, the questions given by the teacher are from books, so first of all, you should focus on the books issued by the school. If you didn't listen to the last class at all, read the book again ~ ~ Ask the teacher and classmates if you don't understand, and then do the exercises in the book. If you can do the same problem, don't do it ~ ~ ask your classmates and teachers. After reading all the examples and exercises in the book, your score is guaranteed to be qualified ~ ~ Good luck ~ ~