---That’s the third time he’s won the award in this field.---Yes. He ______ his maximum potential in the past decade.A.exploredB.is exploringC.has been exploringD.has explored
网友回答
C解析考查时态。从语意知“过去十年来他一直都在发掘他最大的潜能”，另外，从“in the past decade"可知应该用现在完成时，同时此处强调十年来他一直保有的状态”，所以选择用现在完成进行时，故选C。