In this task you are given a small conversation between two persons and 4 options on how the conversation should continue. Your job is to choose the most reasonable option. The conversation and the options are separated by a newline character. Each dialogue in the conversation are separated by a comma. F and M indicate female and male, respectively.

F: How long have you been living in this city, Jack? ,M: Let me see. I came to this city when I was 23 years old. So 5 years now. ,F: Do you like living in the big city? ,M: Not so much. Air pollution has become such a big problem here now.
(A) F: I agree with you. Heavy traffic is a serious problem. (B) F: I agree with you. Air pollution is not a serious problem. (C) F: I am afraid I did not quite catch what you were saying. Please repeat it. (D) F: I agree with you. Air pollution should be paid more attention to.
D

F: Hi, my name is Catherine. ,M: I'm John. It's nice to meet you. ,F: Do you know what this professor is like? ,M: I have no idea. This is my first year. ,F: You are a freshman? Me too. Where are you from? ,M: I'm from San Francisco.
(A) F: I've been there a few times. Now we are schoolmates, I can go there more often. (B) F: Oh, yeah, we met there and became friends since then. (C) F: Oh, yeah, I asked you the same question last year. (D) F: I’m sorry, I don’t understand. Could you say it again?
A

M: I'd like a cup of coffee and a cheeseburger, please.
(A) F: Bacon and eggs, OK, here you are! Thanks for coming, madam. (B) F: You only want some potatoes? Nothing else? OK! Wait a minute! (C) F: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (D) F: I'm sorry, but we don't have cheeseburgers at the moment.

D