here --- some student's notebooks on the floor(is还是are）

来源：学生作业帮助网编辑：作业帮时间：2024/05/10 06:12:02

here --- some student's notebooks on the floor(is还是are）
here --- some student's notebooks on the floor(is还是are）

here --- some student's notebooks on the floor(is还是are）
填 are
主语是some student's notebooks