It was in his office _____he worked.因为我有in 那不就不用where了吗,为什么还

It was in his office _____he worked.因为我有in 那不就不用where了吗,为什么还 It was in his office where he worked请问这是主语从句还是同位语从句 Where was it invented [ in ] 如果不用,为什么Who was it invented 有个b It was in the ___my father worked.填where 还是that ,为什么? It was in the factory_____my father worked.答案是where,为什么不能填th where用法It was in beijing that we met last,为什么不用where It was in the cinema where I regularly go.为什么用where,不用that? 求It is three years since he worked in his office.解释下since It was in that office ____ Alice once worked ___ they met ea ____not in his office.A .It was happened that he was B .It h Where did you see LiLy?It was in the office_____she worked. .(读一读,Peter was an office worker.He worked in an office in a