Don't feed the dog grass.改为同义句you( )( )( ) feed the dog grass.

Don't feed the dog grass.改为同义句you( )( )( ) feed the dog grass.
Don't feed the dog grass.改为同义句you( )( )( ) feed the dog grass.

Don't feed the dog grass.改为同义句you( )( )( ) feed the dog grass.
had better not

准确答案为：
= You (are forbidden to) feed the dog grass.
或 = You (aren't allowed to) feed the dog grass.
注：be forbidden to do sth = be not allowed to do sth 不允许/禁止做某事
如果对你有所帮助，请点击我回答下面的“选为满意回答”按钮，谢谢！

aren't allowed/prohibited to
不要喂狗草