Hi @Ling0309,
Thank you for reaching out to the Community. I understand your concern, but this depends on the policies set by your school district. I recommend reaching out to the enrollment section of your school district as they will be in a better position to let you know if you can apply for their school after applying for another within the same district.
Here are some frequently asked questions by the Enrollment Family users.
ParitoshT
Community Moderator