Dai, only this one is a chain, the quality is guaranteed, and the rest are private. NB teachers have all of them, but there is no guarantee that they will teach you. In fact, the most important thing is to be interested in English If you are not interested, he will find it difficult to learn, and of course he can't learn well. Cultivate his interest in English. In fact, you can go to Chengdu New Oriental if you have the conditions. It's really good. It's not covered. I went to make up the college entrance examination punching class, and the price was very cheap. Quality is guaranteed.