If you are more careful in class, there will be no problem. Teachers will give points according to the attendance rate and homework, which will generally be 7 1 to 90%. Teachers usually don't make it difficult for students to score.

The usual grades are the scores obtained by the teacher according to your usual performance in class: answering questions, homework, asking questions, etc. Generally speaking, the usual grades account for 30% of the final grade at most, and the rest is the final exam score of 70%.