The room is in a terrible mess；it（ ）have been cleaned for a long time书后答案是写的 mustn't 但是网上很多解释是应该填写can't 比较纠结,到底填写什么啊?

Ter car is in the front of you.改错 The man in the room和There is a man in the room有什么区别? There is a desk and some chairs in the room.对in the room 提问 there is a table in the room.中的 in the room 做什么成分 There is a nurse in the room.____ ____ ____ ____ there in the room? The boy is in---------room Is there a computer room in the school? Is there a TV in the computer room?回答是 Is there a chair in the room?意思 there is only a s_____ bed in the room? There is a woman in the room.改复数 there is a child in the room.改为复数句 Is there a baby in the room（变复数词 There is nothing but a big box in the room. there is a desk in the room ｛改为否定句｝ Is there a child in the room(改为复数句 ) There is a child in the room 3Q There is a lot of breads in the room.改错