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题型：单选题 题类：常考题 难易度：普通
（新版）人教新目标版七年级英语下册 Unit 4 Don’t eat in class Section A 同步练习
-- I'd love to. But I have a lot of work to do.
—It's 8:30 a. m. He {#blank#}1{#/blank#} (must／can) be at school having classes.
— Yes, they can.
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