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> In the past few years, sea ice ____ in the Arctic as a result of global warming.A.had meltedB.has be
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 melted
B.has been melting
C.melted
D.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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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
答案