阅读理解，判断对错。

Hello, I'm Mike. Welcome to our school. It's big and beautiful. Look! This is our playground. It's big. There are forty rooms in our school. This is the library. It's on the first floor. And it's next to Classroom 2. I can read books in the library. The art room is on the second floor. I can draw pictures in the art room. The music room is under the art room. I can play the piano in the music room. The computer room is next to Classroom 4. Where is the teachers' office? It's not on the first floor. Oh, where is it?