A farmer once organized a competition between his dog and his rabbit.He dug a hole in one of his biggest fields,and hid a carrot and a bone in it.He wanted to see which animal would find them first.
【The cheerful and optimistic rabbit threw himself into looking for the carrot,digging here and there,totally convinced that he would find it.】
这里的convinced是谓语动词还是非谓语啊?为什么不可以用convincing,难道表示的是兔子被确信的意思吗?