— Why is the classroom so dirty? — Sorry, sir. It yesterday. We forgot to do it. [ ]A．doesn't clean B．didn't clean C．isn't cleanedD．wasn't cleaned -初中英语-n多题

◎ 题干

— Why is the classroom so dirty?
— Sorry, sir. It yesterday. We forgot to do it.

[ ]

A．doesn't clean
B．didn't clean
C．isn't cleaned
D．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 the classroom so dirty? — Sorry, sir. It yesterday. We forgot to do it. [ ]A．doesn't clean B．didn't clean C．isn't cleanedD．wasn't cleaned …”主要考查了你对【被动语态】，【一般过去时】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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