tom()at this school ten years ago

He ______(study) at that school ten years ago. 1.Is this the school ___you studied ten years ago? Ten years ago there were 500 children at the school.(就Ten ye Ten years ago there were 500 children at the school.(就划线部分提问 Is this school _____ your father worked in ten years ago?（选择 请问Is this school ______ your father worked in ten years ago? 关于定语从句Was it this school where you studied ten years ago?这句话 Is this the school that he studied ten years ago?哪错了?为什么? The school was built ten years ago.【对 ten years ago提问】___was I left school ten years ago.(改为同义句) About ten years ago when I was at Unviersity this factory opened ten years ago(同一句)