The sign on the grass mens"Keep off the grass".(改为一般疑问句,画线部分提问:keep off the grass)

问题描述:

The sign on the grass mens"Keep off the grass".(改为一般疑问句,画线部分提问:keep off the grass)

这是初一上学期语法知识.
一般疑问句:Does the sigh on the grass mean "keep off the grass"?
提问:What does the sigh on the grass mean ?