I'll tell you ... just say that you are sick and want to go home, and you need the teacher to postpone the exam for you. Pretend that the teacher wants the parents to call, and one of your friends will call the teacher's office's landline instead of the mobile phone ... Just tell the teacher that all the tickets at home have been bought, that is, you must not take the exam, that is, you must not take the exam without delay ... If the teacher is interested, don't be threatened by the delayed exam .. Finally, if you are unsuccessful,