It was not easy for him to buy good shoes because he had such a big of feet.A. coupleB.

网友回答

A. couple
(答案→)B. size
C. number
D. pair
解析：词义辨析。couple 一对，数个； size   大小，尺寸； number 数目； pair双，副。句意：对他来说买上一双好鞋不容易，因为他有一双如此大尺寸的脚。故选B。