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题型：单选题 题类：常考题 难易度：普通
北师大版初中英语七年级上册Unit 3 Home Lesson 7 Time to Tidy 同步练习3
—They are _____, not ______.
—- Wow, you are so smart!
— Yes. And often helps with my English.
—He's my brother, Bob.
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