lols7蛇女技能介绍:英语初一的

来源:百度文库 编辑:神马品牌网 时间:2024/05/11 04:30:01
they spent ___________ vacation.
1.three day 2.a three-day 3.a three-days 4.three-day
速度,别答错哦
why?用中文!

a three-day =three days'

2