—I wonder how much you for your services.
---Well, the first two are free while the third costs $30 .
A. bargain
B. charge
C. offer
D. donate
网友回答
A. bargain
(答案→)B. charge
C. offer
D. donate
解析：考查动词：A. bargain 讨价还价B. charge要价C. offer提供D. donate捐款，句意：--我想知道你的服务要价多少？--前面两次是免费的。第三次30美元。选B。