Task: Dialogue Generation
Input (English): M: Do you think it is difficult to learn a foreign language? ,F: No. I think learning a foreign language is a piece of cake. I've learned a lot of English in a very short time.
(A) M: You mean learning a foreign language is not difficult, right? (B) M: You've learned a lot of English in a very long time, then how can I use English in everyday life? (C) M: How can you say that learning a foreign language is a piece of cake? You've learned a lot of English in a very long time. (D) M: I am afraid I did not quite catch what you were saying. Please repeat it.
Output (English): A