— 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
网友回答
A. explored
B. is exploring
(答案→)C. has been exploring
D. has explored
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。