◎ 题干
He ___ away before we arrived, since the house was deserted.
A.shall have goneB.should have gone
C.could have goneD.must have gone
◎ 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“He ___ away before we arrived, since the house was deserted.A.shall have goneB.should have goneC.could have goneD.must have gone…”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。