◎ 题干

—Who has broken the window in my room?
—Who else      it but your naughty son!
A.could doB.could have doneC.might doD.must have 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 broken the window in my room? —Who else it but your naughty son!A.could doB.could have doneC.might doD.must have 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。