试题 试卷
题型：句子改错 题类： 难易度：普通
人教版（PEP）四年级下册 Unit 5 Part B Read and write&Part C Story time 分层作业
— We are playing with{#blank#}1{#/blank#}dog. （物主代词）
—Yes, it is pen.
— No, they aren't. ______________are black.
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