un taille-crayon   a ruler   a piece of chalk   an exercise pad   a pencil sharpener   un stylo bleu   a door   a pencil   a place   a blue pen   un ordinateur   a red pen   a computer   a blue pen   a calculator   une calculatrice   a calculator   a chair   a window   a book   un crayon   a red pen   a blackboard   a chair   a pencil