Well done maxbc! You will never look back 
You can avoid English but you need to speak all European languages !
Surprisingly, no. To cross borders in Europe you need ELP4 on your license. So e.g. a pilot flying from France to Germany needs ELP even if he can speak both French and German!
Is it the same in other countries, i.e. you need an English radio qualification to go abroad ?
Yes, ELP4 is minimum requirement.
