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题型:单选题 题类:常考题 难易度:普通
北师大版初中英语八年级上册Unit 2 Lesson 4同步练习2
—It _______ be him. I saw him enter the school library just now.
—Sorry, I'm afraid you ________. Look at the sign “No smoking”!
—No, he ________ be there. I saw him ________ just now.
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