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    精英家教网 > 高中英语 > 题目详情
    — 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
    C
    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。
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