It was the factory ----- I workde ten years ago.填where还是that

It was the factory __where___ I workde ten years ago.
上句是定语从句
可以这样理I workde in the factory ten years ago.而where引导相当于in +someplace.
It was in the factory __that___ I workde ten years ago.
上句是典型的强调句,强调句用that引导.
再问： It was in the factory _____ I workde ten years ago that I got to know him. 应该填where还是that。
再答： 哦哦，刚才看错了，还是认为是第二句呢 我认为是where，可以可看成是where引导的定语从句。that I got to know him是强调句的内容。