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

问题补充：

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

A. exchange

B. trade

C. bargain

D. business

答案：

A. exchange

B. trade

(答案→)C. bargain

D. business

解析：考查英语固定短语。A real bargain真正的便宜货。Exchange交换；trade贸易；business生意；句意：我只花了10美元就买了一件衣服，真便宜啊！故C正确。