问题补充:
It was not easy for him to buy good shoes because he had such a big of feet.
A. couple
B. size
C. number
D. pair
答案:
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。