Question

【题目】— 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

Answer 1

【答案】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。