Write the name of these places and things.1) a place where

Write the name of these places and things.
1) a place where pupils have their lessons
2) a place they sit at
3) a place where pupils can write
4) a thing which helps pupils ti draw lines
5) a thing which helps them to rub something out in their exercisebook
6) a thing helps a teacher to show something on the blackboard
7) a thing with the help of which we clean the furniture