1. You can go to the original school to go through the formalities of dropping out of school and returning to school again. If you don't accept it, let the school give a reason and give you a written reply. ) 2. The original school does not agree to go through the formalities of dropping out of school and resuming schooling, and it is illegal for children to receive nine-year compulsory education. You can sue after you have the evidence. 3. Give in. You should also give in and allow your child to repeat one year (so as not to conflict with the school teaching plan and make it difficult for the child's academic performance to keep up with the reality). 4. If it's really no good, it's better to find local education administrative officials or county and city education bureaus to order direct acceptance. 5. If the Education Bureau does not solve the problem, it shall give a written reply. With a written reply, you can bring an administrative lawsuit.