A one pound and a half B one and a half pound

问题描述:

A one pound and a half B one and a half pound
选哪个?且我们知道表达“一个半小时”可以有以下两种方式:1、one hour and a half 2、one and a half hour
题目是The red shoes cost(

选A .B应该表述为one and a half pounds