Over the past decades, forest area ______ in China as a result of massive deforestation.
A.had decreased
B.decreased
C.is decreasing
D.has been decreasing
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◎ 解析
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◎ 知识点
根据n多题专家分析,试题“Over the past decades, forest area ______ in China as a result of massive deforestation.A.had decreasedB.decreasedC.is decreasingD.has been decreasing…”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。
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