直到在法庭受到审讯时，他才明白了事情的真相。

A、It was until his trial in the court that he got to know the truth of it.
B、It was not until his trial in the court that did he get to know the truth of it.
C、It was not until his trial in the court that he got to know the truth of it.
D、It was until his trial in the court that did he get to know the truth of it.