where is there a book?这句话是正确的吗?

where is there a book?这句话是正确的吗?
原题是:There is a basketball under the bed.under the bed下面划线，要求是对划线部分提问。
资料给出的答案是：Where is there a basketball?(资料上前面有3个空，然后给出了a besketball?)