______ at the door before you enter my room, please.A．Knock B．KnockingC．KnockedD．To knock-高中英语-n多题

◎ 题干

______ at the door before you enter my room, please.

A．Knock

B．Knocking

C．Knocked

D．To knock

◎ 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“______ at the door before you enter my room, please.A．Knock B．KnockingC．KnockedD．To knock…”主要考查了你对【动词短语】，【动词】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。

◎ 相似题

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