Before answering this question, I have to say something. Such simple things are all asked online, and some people who are going to America don't understand this simple English material. The fact is that you are no better than studying abroad. Going there is also very troublesome, and it is impossible to communicate how to study.

First: I call you an electronic translator, that is, there is a special online translator in GOOGLE, which is very simple to operate.

Second: Ask the staff of the local international travel service to send samples for you, and you will have everything.

Third: Find a visa service company to help you for free.