Over the past decades, forest area ______ in China as a result of massive deforestation.A.had decrea

题目简介

Over the past decades, forest area ______ in China as a result of massive deforestation.A.had decrea

题目详情

Over the past decades, forest area ______ in China as a result of massive deforestation.
A.had decreasedB.decreasedC.is decreasingD.has been decreasing
题型:单选题难度:偏易来源:不详

答案

D
考查时态。Over the past+时间段,用现在完成时态,故选D。

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