Is this the factory __________ he worked ten years ago?

题目

Is this the factory __________ he worked ten years ago?
i s this the factory __________ he worked ten years ago?
A.that B.where C.which D.the one 问that等于the 为什么不选择that?

答案

选B.
work in the factory,in 省略了,就要选B.
如果是下面的填空,则A,C都可以.
Is this the factory __________ he worked in ten years ago?