Many schools stipulate that if you have any objection to the final grade of last semester, you can apply to the teacher for inquiring the grade within two weeks. You can do it this way. But before that, you must have sufficient evidence to prove your doubts, such as checking the answers to the final exam questions with your classmates, or considering whether you are absent from work or leave early. After all, your grades usually account for a large proportion. If not, it will easily lead to an embarrassing situation. The final grade of the university is related to many important things, so be careful.