改错：I found him being a diligengt student.

I found him to be a diligengt student。应填 to be。本题主要看found后面的代词是主格还是宾格。1、I found him to be a diligengt student （to be a clever boy是him的宾语补足语。句型：find sb/sth ( to be )+adj。/n。/adv。觉得某人或某物。） 2、I found he was a diligengt student。(found后接宾语从句,从句谓语动词was 与主句的时态一致)