five meter,five meters,five meters' 选择哪个?The hole is____ deep.It is dangerous.We should put a sign.five meter five meters five meters' 三个答案应该选哪个?为什么?

问题描述:

five meter,five meters,five meters' 选择哪个?
The hole is____ deep.It is dangerous.We should put a sign.
five meter five meters five meters'
三个答案应该选哪个?
为什么?

第三个
five 修饰meter时,变复数,"五米深"要用名词所属格,所以在meters后直接加's

b

第2个
第一个应该是FIVE-METER
第3个没这样用的

five meters