I bought a dress for only 10 dollars in a sale; it was a real .A. exchangeB. bargainC. tr

问题补充：

I bought a dress for only 10 dollars in a sale; it was a real .

A. exchange

B. bargain

C. trade

D. business

答案：

A. exchange

(答案→)B. bargain

C. trade

D. business

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