问题补充：
He me five dollars for it, but at first he said to me the work would be done .
A. charged ; free of charge
B. charged for ; charged for nothing
C. charged ; out of the charge
D. charged to ; free of the charge
答案：
(答案→)A. charged ; free of charge
B. charged for ; charged for nothing
C. charged ; out of the charge
D. charged to ; free of the charge
解析：harge sb money for (doing) sth“就……向某人索取……费用”。free of charge“免费的”。
