他自称是金融专家，但实际上不过是个骗子。

He presented himself as a financial expert, but he was nothing more than a ___fraud.

该公司环保声明的真相被揭露为骗局，误导消费者多年。

The company's eco-friendly claims were revealed to be a ___fraud, misleading consumers for years.

这个古董花瓶是个精巧的赝品，被精心制作成看似有数百年历史。

The antique vase was a clever ___fraud, expertly crafted to appear centuries old.