I am ________ both speaking and writing.[ ]A.concentratedB.concentratingC.concentrated onD.concentrating on -高中英语-n多题

◎ 题干

I am ________ both speaking and writing.

[ ]

A.concentrated
B.concentrating
C.concentrated on
D.concentrating on

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◎ 解析

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◎ 知识点

根据n多题专家分析，试题“I am ________ both speaking and writing.[ ]A.concentratedB.concentratingC.concentrated onD.concentrating on …”主要考查了你对【动词短语】，【现在进行时】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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