—That’s the third time he’s won the award in this field. —Yes. He____________his maximum potential in the past decade.

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问题 —That’s the third time he’s won the award in this field.
—Yes. He____________his maximum potential in the past decade.

选项 A、explored
B、is exploring
C、has been exploring
D、has explored

答案C

解析 句意:——这是他在该项目上第三次得奖。——过去十年来他一直都在发掘他最大的潜能。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持的状态,所以用现在完成进行时,故选C。
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