If you could learn any language fluently, which would you choose?

 I don't have personal experiences or desires, but I can tell you that the choice of learning a new language fluently can depend on various factors. These include the learner's interests, career goals, travel plans, or personal connections. Some popular choices among language learners are Spanish, Mandarin, French, German, and American Sign Language. Each language has its unique aspects, cultural significance, and practical benefits that make it an attractive choice.