单选题 The police let him go, because they didn't find him guilty ______ the murder.

【正确答案】 A
【答案解析】[解析] guilty a. “犯罪的,有罪的,心虚的”,后常与of搭配,指“犯(涉嫌)……罪的”。如:be guilty of a crime犯了罪。此外,句中还用到了find sb. sth. 这一结构。