He asked for two days'sick leave 疑问句

He asked for two days'sick leave 疑问句
He asked for two days' sick leave 句子应该是正确的吧.

针对具体时间 提问的话.是不是可以说

How many days' sick leave did he ask for ?

不确定前面 days' sick leave 能这么写么.谢谢哈.和大家讨论下.
2 连字符 作形容词的情况

ask a two-day leave 还是

ask two-day leave . 加不加冠词 A

O(∩_∩)O谢谢哈。。。了解下 那个才对？ 还是都说的通