三、Read and choose. Wang Lu正在向新同学介绍学校。读一读,选择正确的教室,将字母序号写在相应的楼层内。

Wang Lu: Welcome, Tang Xue.
Tang Xue: Thank you. Where is the art room?
Wang Lu: It’s on the third floor. The library is on the third floor, too.
Tang Xue: Oh, cool. Is the music room on the first floor?
Wang Lu: Yes, it is. And the toilet is on the first floor, too.
Tang Xue: I’m in Class Three, Grade Four. Where is it?
Wang Lu: It’s on the second floor. Let’s go.
Tang Xue: OK!

3F: A, D；2F: C；1F: B, E

根据对话内容，首先，美术室和图书馆都在三楼，因此3F应填美术室（D）和图书馆（A）；其次，四年级三班在二楼，因此2F应填C；最后，音乐室和厕所都在一楼，因此1F应填音乐室（B）和厕所（E）。