It's about ( ) walk.A.three-hour B.three-hours C.three-hours' D.three-hours's给讲讲吧.谢谢!

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It's about ( ) walk.A.three-hour B.three-hours C.three-hours' D.three-hours's给讲讲吧.谢谢!
It's about ( ) walk.
A.three-hour B.three-hours C.three-hours' D.three-hours's
给讲讲吧.谢谢!

It's about ( ) walk.A.three-hour B.three-hours C.three-hours' D.three-hours's给讲讲吧.谢谢!
A
three-hour walk
three hours' walk
只有这两种是对的 其他都不对 记住就好了 用连词线连着的词不可能是复数形式

B

A
英文中若用-连接数词时,必须用单数,例如:two-hour;three-day
只要记住这个就可以了,这样很容易判断出所有复数形式都是错误的。

A

C 表示时间,距离等,都可以使用所有格形式,例如:
today's newspaper, 今日的报纸

C 固定的用法