In the past few years, sea ice ____ in the Arctic as a result of global warming.
题型：不详难度：来源：
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 |
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答案
| B |
解析
| 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。 |
举一反三
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