There is a basketball under the bed.under the bed下面划线,要求是对划线部分提问.

题目

There is a basketball under the bed.under the bed下面划线,要求是对划线部分提问.
完整讲解
请重点讲解一下后面为什么用"the",为什么提问时没有了"there"

答案

Where is the basketball