Is that factory which your father once worked in?改错的题目,不知其解,那么,请．_英语解答

Is that factory which your father once worked in?
改错的题目,不知其解,那么,请．望附有解析,

人气：432 ℃　时间：2019-08-26 06:28:34

解答

Is that (the) factory which your father once worked in?
Is that factory (the one that) your father once worked in?
Is that factory where your father once worked?