The house__I used to live has been knocked down.用which 还是in

The house__I used to live has been knocked down.用which 还是in the house where i used to live has been knocked It has been used to detect gold which has been buried in the 英语达人速度The house which I used to live in has disappeared.The he has been used to the life in the countryside.为什么be used t This is the room in which he used to live.和This is the room we used to study in the old building which was broken down . This is the house in __I used to live A.that B/ which C.wher He used to live in the city. the writer has been used to sl( )in the daytime and working ------ houses were knocked down in the earthquake. He likes the place____he used to live. A.which B.