If you choose a small language, someone (such as a class teacher) will contact you in May to confirm the language. Because I chose Japanese in the college entrance examination last year, the only minor language candidate in the city was a separate examination room, and the director of the Admissions Office of the Education Bureau called me to confirm it.
I wonder if I can change it.
You can log in to official website, the education examination institute of your province and city, and make an inquiry. For example, our province is called "official website, Hebei Education Examinations Institute".