John opened the door. There ________he had never seen before

[W10] John opened the door.There ______ he had never seen be John opend the door.There _he had never seen before.A.a girl John opened the door.Beside the table()he had never seen bef he opened the door.（ ）he had not seen before I had never seen it before There he had never seen before .A did a girl stand B stood a Getting there,the door was found opened. A prosperity which had never been seen before appears in the a prosperity that had never been seen before appea A prosperity which /that had never been seen before appears A prosperity which / that had never been seen before appears 英语语法 when he opened the door,there ____ nobody there