fraud

他因信用卡欺诈被判有罪。

He was convicted of credit card ___fraud.

我的婚姻是一场骗局，是一桩重婚案。

My marriage was a ___fraud, a case of bigamy.

她自称是记者，但其实只是个骗子。

She claimed to be a journalist, but she was just a ___fraud.