There are some knives in the box.【改为单数】

来源：学生作业帮助网 编辑：作业帮 时间：2024/06/03 01:28:47

There are some knives in the box.【改为单数】
There are some knives in the box.【改为单数】

There are some knives in the box.【改为单数】
There is a knife in the box.