there is ___ classroom and ___ art room ___ this floor.
问题描述：
there is ___ classroom and ___ art room ___ this floor.
答
there is _a__ classroom and _an__ art room _on__ this floor.
在这一层，有一间教室和一件美术教室。
望采纳！
答
There is ___ classroom and ___ art room ___ this floor.
答案：a an on
翻译：在这一层有一间教室和一间艺术室.