看图，把下列对话补充完整。
Amy: ____1____ is the classroom?
Chen Jie: It’s on the ___2____ floor.
Amy: Where is the library? Is it ___3____ the second floor?
Chen Jie: No, ___4____ ___5____. It’s on the ___6____ floor.
Amy: Where is the ___7____ ___8____.
Chen Jie: It’s on the first floor, too.
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