-That's the third time he's won the award in this field. -Yes. He his maximum po

—That's the third time he's won the award in this field.

—Yes. He ________ his maximum potential in the past decade.

A．explored  B．is exploring

C．has been exploring  D．has explored

试题答案

C　考查动词的时态。语境：近十年来，他一直在挖掘他的最大潜能，所以又获奖了。