Subject three hangs a safety fill-in-the-blank book, which says that subject three failed the exam, deducted points, deducted points, the name of the student and the signature of the security officer, and whether it is qualified. If the subject 3 exam fails, the safety officer will prompt to pull over, and then the safety officer will drive the test car back to the test starting point. There will also be an opportunity to take an exam, and all items will be retaken.