题型：单选题 题类：常考题 难易度：普通
人教版（PEP）2018-2019学年小学英语六年级上册Unit 4 I have a pen pal. Part A同步训练一
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A. Yes, it is. B. No, it isn't. The library is on the first floor. C. It's on the second floor. D. No, it isn't. The teachers' office is next to the library. |
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