The key to filling in volunteers is your score and the specified score line.
Obviously, if you only get two grades, you won't get into a key school.
If your score is higher than the score of a certain stage, you need to refer to all schools, school majors and your interests at this stage.
If the school is determined first, it is necessary to determine the majors that need to be reported through the school's professional achievements over the years; If you decide your major first, you can find a school with this major, and the score is equivalent.
Therefore, it depends on your overall academic performance to fill in your volunteers. Mathematics alone can't explain anything.
PS: Please leave a message if you have any other questions.