At the moment I'm staying in London

I'm curious about applying to America

Can I appy to America in London? and if it is possible, what should i prepare for it?

In addition, I took an IELTS exam last Sat. If the score is more than 6.0, can I have a sponser to immigration?

Sorry, here is my school so I can't use Korean keyboard T.T

I hope you can understand my terrible writing... sorry again!!

I'm look forward to hearing from you sooooon~~!