Translation of gradient in Spanish

I have contacted you 12 months ago to propose your school's inclusion in our language school directory. I wanted to inform you that our site achieved high positions in search engines last month.
Flying straight from Geneva to New York that does not exist, you must change planes in Zurich. You can also take a 3 hour train ride and then a connection to the airport with a local shuttle.
I need to learn a lot of Spanish because I want to study at the university of Madrid. In Switzerland, I studied law, but after 2 years I have switched to medicine: to help people, rather than you know....