孩子们在墙上贴了一张海报。
The children put up a ___poster on the wall.
我房间里有一张我最喜欢的乐队的海报。
There is a ___poster of my favourite band in my room.
孩子们在教室墙上贴了一张海报。
The children put up a ___poster on the classroom wall.