◎ 题干

I heard a soft _______ at the door. When I looked up, I found it was Mary.
A.noiseB.soundC.voiceD.cry
◎ 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“I heard a soft _______ at the door. When I looked up, I found it was Mary. A.noiseB.soundC.voiceD.cry…”主要考查了你对  【可数名词及其单复数】【集合名词】【名词】  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。