If you see "Subject 1 didn't attend Subject 1 driver training" when you register for the motor vehicle driver test, it means that you haven't attended the training course related to Subject 1. This may be because you have not signed up for the relevant motor vehicle driver training courses, or because you have signed up for the relevant training courses, but have not participated in the training links related to subject 1.
When taking the motor vehicle driver test, you need to complete the corresponding driver training course before you can take the test. The training course includes subject 1, subject 2 and subject 3, of which subject 1 is a theoretical examination, which requires candidates to master traffic regulations and safety knowledge, road traffic signals and signs, driving knowledge and skills. Therefore, if you haven't participated in the subject one driver training, you can't take the subject one exam.
If you want to take the motor vehicle driver test, you need to sign up for the driver training course in subject one first. You need to choose the corresponding training course and time when you register, and you can take the corresponding exam after completing the training. During the training period, you need to study hard and master relevant driving skills and safety knowledge in order to successfully pass the motor vehicle driver's exam.
In short, "you have not participated in driver training in subject one" means that you have not participated in relevant training courses, and you need to sign up for training courses and complete the training before you can take the subject one exam. It is hoped that candidates can study hard, master relevant knowledge and skills, successfully pass the motor vehicle driver's test and drive safely.