Which language(s) do you currently speak? If you could learn only one other language, what would you choose, and why?
Spanish and English! I use these two every day.
If I could only learn one other language... wow, is that a torture! Not counting the ones I'm studying now (I'll be liberal here - French, Russian, Hindi, Navajo, and Arabic and Icelandic), I think I'd say Japanese.
But really? One language is not enough.
Is your name Ben?