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题型：语法填空（单句） 题类：常考题 难易度：容易
人教版（新起点）小学英语三年级下册Unit 1 School Subjects Lesson 1 同步练习1
—There are 20 storybooks.
— She's not feeling well.
— I'm 52 kilograms.
— It's ________________.
—At 6: 30.
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