--- I paid him 300 yuan for the sneakers．
--- Oh, he charged you too much．You them with half the money．
A. could have bought
B. needn’t have bought
C. must have bought
D. wouldn’t have bought
网友回答
(答案→)A. could have bought
B. needn’t have bought
C. must have bought
D. wouldn’t have bought
解析：词义辨析。could have bought本能够买；．needn’t have bought没有必要买；
must have bought肯定买了；wouldn’t have bought不会买；这些零食我付了他300元。他要的太多了。你本可以用一半钱来买。所以选A。