◎ 题干
— Why is your bedroom so dirty?
— Sorry, Mum. It ___________. I felt very tired after playing soccer.
A.isn’t cleanedB.didn’t cleanC.doesn’t cleanD.wasn’t cleaned
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“— Why is your bedroom so dirty?— Sorry, Mum. It ___________. I felt very tired after playing soccer.A.isn’t cleanedB.didn’t cleanC.doesn’t cleanD.wasn’t …”主要考查了你对  【实义动词的单数第三人称形式】【实义动词】【动词短语】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。