1. The shoes cost me 50 dollars.2. I spend 50 dollars to buy the shoes.3. 50 dollars is the price of the shoes.
你好，很高兴为你解答，答案如下：他以40美元的价格买下了这双鞋。heboughtthispairofshoesfor$40.希望我的回答对你有帮助。
