there are some rubbers in the pencil-case.改为否定句

there are some rubbers in the pencil-case.改为否定句
there are some rubbers in the pencil-case.改为否定句

there are some rubbers in the pencil-case.改为否定句
There aren't any rubbers in the pencil-case.
记住：there be句型的否定式只要在be动词后加not,但此句还涉及另一个知识点：some一般用于肯定句,any用于疑问句和否定句,所以,some还得改为any.