Whatever he explained he couldn’t the policeman that he was innocent．A. confirmB. presen

问题补充：

Whatever he explained, he couldn’t the policeman that he was innocent．

A. confirm

B. present

C. convince

D. admit

答案：

A. confirm

B. present

(答案→)C. convince

D. admit

解析：“不管他怎么解释都不能向警察说清他是清白的。”convince sb sth “想某人传达某意”，答案C。