They don't clean their classroom every day．（改为被动语态）
Their classroom isn'tisn'tcleanedcleanedevery day．
【考点】一般现在时的被动语态．
【答案】isn't；cleaned
【解答】
【点评】
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发布：2024/10/5 0:0:1组卷：107引用：6难度：0.7
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