In the past few years, sea ice ____ in the Arctic as a result of global warming.A.had meltedB.has be

题目简介

In the past few years, sea ice ____ in the Arctic as a result of global warming.A.had meltedB.has be

题目详情

In the past few years, sea ice ____ in the Arctic as a result of global warming.
A.had meltedB.has been melting C.meltedD.is melting
题型:单选题难度:中档来源:不详

答案

B
考查时态。根据in the past few years可知是与完成时连用的,在根据句意是指海冰一直都在融化。所以使用现在完成进行时。句意:在过去几年里,因为全球变暖,海冰一直在融化。

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