What does this sign mean?要以Keep off the grass 写三个答句

What does this sign mean?要以Keep off the grass 写三个答句 does,it,keep,what,off,grass,this,the,sign,mean,means(?.) what does the sign"keep off the grass!"mean?怎么回答 does,it,kepp,what,off,grass,this,the,the,sign,mean,means(?.) The sign on the grass mean 'Keep off the grass'改病句 The sign means "Keep off the grass".改为同义句 The sign means “Keep off the grass.”(改为同意句) what ______ the signs mean?______mean“Keep off the grass”. what does this sign mean? The sign on the grass means Keep off the grass.（改为同义句） The sign means" keep off the grass"改为同义句 The sign means we__ what does the sign mean.