73.It is over_____from Shanghai to Nanjing.
问题描述：
73.It is over_____from Shanghai to Nanjing.
A.three hours'drive B.three hour's drive C.three hours'drives D.three hours drive
答
选A嘛.
意思是从上海到南京要超过3小时的车程.
首先 “3小时的”表达方式是：three hours’
而drive这里是不可数名词,不用加s.
因此选A