介绍学校布局的短文表达 — 英语填空题

根据中文提示补全短文，介绍学校布局。Welcome to my school. There is a big playground in the m_____（中间）of the school. The teaching building is n_____（在……后面）the playground. In front of the playground, you can see the library. My books are often o_____（在……上）the desk in the reading room. I love my school!