◎ 题干
It ____ last night, for the ground is wet now.
A.might not have rainedB.must have rainedC.couldn't have rainedD.rained
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“It ____ last night, for the ground is wet now.A.might not have rainedB.must have rainedC.couldn't have rainedD.rained…”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。