.. —OK $ 500 but that is my last offer.—.A. Good idea!B. What did you say?C. Oh it's up

问题补充：

.

. —OK, $ 500, but that is my last offer.

—.

A. Good idea!

B. What did you say?

C. Oh, its up to you.

D. OK, its a deal.

答案：

A. Good idea!

B. What did you say?

C. Oh, its up to you.

(答案→)D. OK, its a deal.

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