作业帮there are some umbrellas behind the door.(改为单数形式)
来源：学生作业帮助网 编辑：作业帮 时间：2024/04/30 03:13:24
there are some umbrellas behind the door.(改为单数形式)
there are some umbrellas behind the door.(改为单数形式)
there are some umbrellas behind the door.(改为单数形式)
There is an umbrella behind the door.
There is an umbrella behind the door.
It is an umbrella behind the door.