— The floor is clean and dry now. Who _______?— Sorry, I don’t know.A．mopped it upB．has mopped it upC．has mopped up itD．mopped up it-初中英语-n多题

◎ 题干

— The floor is clean and dry now. Who _______?
— Sorry, I don’t know.

A．mopped it up

B．has mopped it up

C．has mopped up it

D．mopped up it

◎ 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“— The floor is clean and dry now. Who _______?— Sorry, I don’t know.A．mopped it upB．has mopped it upC．has mopped up itD．mopped up it…”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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