Those are some keys.(改为单数）

来源：学生作业帮助网编辑：六六作业网时间：2024/11/16 09:40:01

Thosearesomekeys.(改为单数）Thosearesomekeys.(改为单数）Thosearesomekeys.(改为单数）Thatisakey.

Those are some keys.(改为单数）
Those are some keys.(改为单数）

Those are some keys.(改为单数）
That is a key.