Because I signed up for a training class before, but I haven't heard of this Tianjin Spark Education before. Now I have just had two classes, but the exam is in April. Listen.
Some training schools should be newly opened, and all of them have many years of experience and fame. Now many training schools are run by the people, so it is normal to fail to pass the name. You can try their teaching quality, maybe it will have its own characteristics.