2 Where's the white rubber?
It's in the pencil-box. (в пенале)
3 Where's the red pencil?
It's on the desk between the pencil-box and copybook. (на парте между пеналом и тетрадкой)
4 Where's the board?
It's on the wall.
5 Where are the books?
They are on the shelves. (на полках)
6 Where's the laptop? (ноутбук)
It's on the teacher's desk.
7 Where's the bag? (сумка/ранец)
It's on the floor between the desks. (на полу между партами)