In this world, the language of the English was general and widespread in all country and city. The language of the English is the one language that can communication to others community form others countries or cities. If someone were being unfamiliar with the English language, they will be eliminated by others, even if the get dirty looks, and ridicule by others. As a result, mostly people that without the education of the English, they English level were lower than others who were receive the education of the English. As a matter of fact, the people who do not know how to speak in the English they will mix the others language into a conversation, and this is name as ‘code switching’. To prevent the code switching occurs and happen, every one might improve the English level by training well as far as possible. Second to that, the school must pay attention to the students who was bad in English. Therefore, the school can take the action to solves and prevent the code switch occurs and happened in the school as fast as possible so as not to regret, and the students get the formal and correct English in learning. In addition to that, every teacher in the school may set oneself an example to others students so that the students would not have a bad habit. Apart from that, besides in the school and teachers, parents also have the responsibility to correct and to instill the right information to their own children, or they can sent them to the learning central. This is due to the reason that the children can learn the correct information from the learning central and to reduce the wrong. On the other hand, parents may push and give some motivate to their children for reading the English books, and watch the English drama or film.