What's ( ) over there?填it / this that 中的哪一个?

What's ( ) over there?填it / this that 中的哪一个?
What's ( ) over there?
填it / this that 中的哪一个?

What's ( ) over there?填it / this that 中的哪一个?
that

that 与there对应

that

that ,有over there 应该是指远处的东西

that,over there 指远处的东西