The crime of fraud refers to the act of defrauding a large amount of public and private finance by using falsified facts or concealing the truth for the purpose of illegal possession. According to the above definitions, Which of the following are crimes of fraud:. ['Zhang used a fake certificate of a famous university degree to deceive the employer and become a financial director, responsible for the transaction of hundreds of millions of yuan of funds.', 'For selling a copycat mobile phone, Lee advertised a picture of a brand-name mobile phone at the back of the store and made tens of thousands of yuan in a month.', 'Married woman Wang lied that she was unmarried, and claimed that she had asked tens of thousands of yuan for a gift from a single man after she got married.', "Sun's company was run poorly and was heavily in debt. Hundreds of customers lost millions of dollars in order to avoid debt."]