My school is not far from here. It's only walk. 答案说是five minute,但个人认为是five minutes'

问题描述:

My school is not far from here. It's only walk. 答案说是five minute,但个人认为是five minutes'

It's only five minute walk.是固定的说法,既没有复数,也没有's,都是单数形式。如:12 year old boy(12岁的男孩)

答案错了