情景对话与语篇 — 英语填空题

读对话，选择合适的句子补全对话（填序号）。A. Yes, it is. B. It's on the second floor. C. Welcome to our school! Sarah: ___ , Chen Jie. Chen Jie: Thank you. I want to visit the computer room. Sarah: The computer room is next to the library. ___ Chen Jie: Is the library on the second floor, too? Sarah: ___ Let's go!