There's nothing on the table now,isn't there 还是 is there

问题描述:

There's nothing on the table now,isn't there 还是 is there

There's nothing on the table now,( is there)?
因为反意问句是前后意思相反的原则,而陈述句部分有否定词nothing,因此疑问句部分就不能用否定词not.