I want to immigrate to America, where can I learn spoken English?

You can learn when you come to America. Learning English in the American English environment is very fast. There are many places in the United States where English is taught free of charge, which are divided into naturalization classes, oral classes, basic classes and advanced classes. You can also learn it in American churches. Some are taught by Chinese, but many Chinese schools in Chinatown and Flushing charge fees.