I've a friend who lives in France and he doesn't know much English. He wants to visit me in Florida, but I want to help him raise his level of English. Does anyone know how to do this, maybe some courses?
I think visiting you in Florida is the best way to improve your friend's English. However, some people prefer to prepare for their trip in advance. Learning a couple of phrases is one of the possible options to survive.
I suggest your friend starts to read and watch movies in English. It will help him to improve his/her vocabulary and adjust to our speech. So, in other words, it will be way easier to understand English. Besides, a lot of people whose English is the second language recommend this site — https://englishlinx.com. As far as I know, it helps improve grammar, which is also essential.