It should be possible, but it seems that I have to go back to school to register and then take the senior high school entrance examination. In our country, only fresh graduates can take the key high schools, and previous students can only take the ordinary high schools or technical secondary schools. It seems that your situation can only be reported to ordinary high schools. You can go to the recruitment office under the local education bureau for detailed consultation. If you want to take the exam this year, you must hurry up now. It's time to register