--Must I clean the classroom now, Miss Wang? --No, you needn’t . It by Bill.
A.is cleaning
B.should be clean
C.was cleaned
D.has been cleaned
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◎ 知识点
根据n多题专家分析,试题“--Must I clean the classroom now, Miss Wang?--No, you needn’t . It by Bill. A.is cleaningB.should be cleanC.was cleanedD.has been cleaned…”主要考查了你对 【一般现在时】,【过去进行时】,【过去完成进行时】 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。
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