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 1.  A. 40 dollars.                   B. That’s great.                     C. Fine, thank you.

2.  A. Thank you.               B. No, no.                          C. You are welcome.

3.  A. Here you are.             B. Good idea.                        C. Too bad.

4.  A. That’s all right.        B. I think so.                 C. The same to you.

5.  A. Be careful!                         B. Never mind.                    C. Look out!