Test scores = strength+mentality+luck. Strength is your own efforts at ordinary times, and mentality is your attitude towards exams and study. These two points can be mastered by yourself. As for the difficulty in writing the questions, the teacher's lax marking can be attributed to luck. Therefore, after the results come out, it depends on whether your mentality is correct and whether you have made enough efforts at ordinary times. If you work hard enough and have a good attitude, you will succeed.

Second, improve the learning methods.

The teacher should write the questions in advance, especially the multiple-choice questions, and the answers must be written before answering. You can't write answers at the same time, in case you are dependent on the answers. Take the writing questions after class as an exam. Circle the questions that you can't, pay attention in class, and ask the teacher in time if you can't. Don't just ask the teacher, even if you have 1% questions, so you can master 100%. Problems cannot be accumulated, because if there are too many feathers, the ship will sink. Ask the teacher bravely, and no teacher will refuse a studious student.