1. Be brave and honest and take it home to sign. Not only will you feel comfortable, but you will also realize your mistake
2. If you really dare not sign, I understand you. I would take the papers of classmates who did well in the exam and take them home, pretending to be my own papers, and ask my parents to sign them with pencils. The next day, I would take them to school, erase them, and return them to my classmates. I would imitate the signatures myself, and then because my classmates did well in the exams, , don’t be afraid that the teacher will ask parents to sign, just give a tip to your classmates
3. If it’s troublesome, just imitate and sign by yourself!
However, it’s better to be honest. You have to believe that a one-time mistake is nothing, just correct it