After the computer results of a class were announced, Class A said: Some of our class passed, Class B said: Some class failed, Class C said: Zhang Ming did not pass, but in fact two of the three students What my classmates say is not true. Which of the following items are the real situation of the computer test results of this class. ['At least one classmate failed the exam.', 'Except Zhang Ming, there are other students who passed the exam.', 'None of the students in this class failed the exam.', 'Only one student in this class failed the exam.']