1 ¿where is the bin?  it is on the floor
2. ¿where is the vase? it is next to sharpener
3.¿where is the board? it is behing the teacher

1¿where are the studens,? threy are in the classroom.
2.¿where are the children? they are in fron of the teacher
3.¿where are  the notes? they are on the board-