A: Do you speak [language of the exchange]?
The context is that a politice force in a fictional, future city have an uncooperative suspect who is pretending not to be able ot speak their language. This part of the story is supposed to be humorous; part of the joke is that the suspect always answers in the same language as the question, even as the languages they try get progressively more obscure. Eventually they're going to try something super-obscure and he's going to finally say "yes," but I haven't decided what that will be yet.
The first languages that they try will be Chinese (Mandarin and Cantonese), Russian, Spanish, Hindi, and Portuguese, due to the makeup of the city. I've already got the Russian. Any other languages would also be great, especially if you speak something that's not widely studied or spoken!