◎ 题干

—Who has made a mess in my room?
—Who else       it but your naughty son?
A.could doB.could have doneC.didD.has done
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“—Who has made a mess in my room?—Who elseit but your naughty son?A.could doB.could have doneC.didD.has done…”主要考查了你对  【虚拟语气】【情态动词】  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。