◎ 题干
Spoken English slightly differs from country to country. For instance, in some parts of the US the “r” sounds at the end of the words______.
A.is droppedB.have droppedC.has droppedD.are dropped
◎ 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“Spoken English slightly differs from country to country. For instance, in some parts of the US the “r” sounds at the end of the words______.A.is droppedB.have …”主要考查了你对  【一般现在时】【将来进行时】【过去完成进行时】【过去将来时的被动语态】  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。