Excuse me,is the supermarket far from here?No,it's about ( )

问题描述:

Excuse me,is the supermarket far from here?No,it's about ( )
A.7 minutes walk B.7 minute walk C.7 minutes'walk D.7 minute's walk

选C.
7和minute为两个单词,名词后加's,表示 ...的
所以排除A和B
因为是复数,所以C和D中选C