V. Mark the letter A, B, C or D to indicate the correct response to each of the following exchanges
17.  A. "I'm afraid I can't come to your housewarming party next Saturday.
B: “___________________”
A. That sounds fun. B. Oh, what a pity I
C. That's ridiculous. D. Oh, what a relief!
18.  A: "Thank you very much for coming to our wedding!"
B:" ___________________"
A. Our pleasure! Happy wedding! B. Don't mention it. Go ahead!
C. Our pleasure! Good success! D. Don't mention it. Just my luck!