There is some rubbish in our classroom.(改为否定句）

There is some rubbish in our classroom.(改为否定句）
There is some rubbish in our classroom.(改为否定句）

There is some rubbish in our classroom.(改为否定句）
There is no any rubbish in our classroom.

There isn't any rubbish in our classroom.
There is no rubbish in our classroom.

there is no rubbish in out classroom
there isn't any rubbish in our classroom

2\3楼正确。no=not any/not a