Odpowiedź:
B: Yes, absolutely. It is useful to know many languages.
A: I don't think so. In my opinion it takes too much time and it's difficult to learn different grammar and vocabulary at the same time.
B: Yes. I personally think it was easier to learn when we were younger.
A: You are right, but learning a language is quite expensive and you need to buy books or go to a course.
B: I disagree with you. You can learn a language online. It is cheaper.