http://abc11.com/news/rocky-mount-teacher-accused-of-having-sex-with-students/2076471/


これが英語原文のソースね。
Preparatory School　とは　予備校ではなく私立学校のようだがな。


preparatory school

noun　1.　a private or parochial secondary school, especially one boarding its students and providing a college-preparatory education.

http://www.dictionary.com/browse/preparatory-school?s=t