This is not good. I signed up for the whole class and took the exam in March. People didn't even inform us of the upcoming course. They secretly informed us about the next two classes and told the teacher that the winter vacation class was a freshman and a sophomore, and the cycle was useless. Don't listen to him, there will be many good reasons to lie to you in the future. You were a grandfather when you signed up, and a grandson after you signed up.