Hello! Your confusion is probably the confusion of many preparatory students. You should go to this teacher and talk to him face to face. According to the situation, you should speak in a euphemistic tone. After all, the teacher didn't explicitly say that he would accept you, and of course he didn't say that he wouldn't accept you, so all you have to do is make sure that he will accept you. What's so hard about that?
I hope it will help you. Welcome to ask. Welcome to adopt!