It is water in the box.这句话有否语法上的错误?

问题描述:

It is water in the box.这句话有否语法上的错误?

我刚说的呀,
it is water in the box.
(可以看成是强调句的省略,箱子里的是水)
主谓宾+状语,没错啊.