Where's she going?
She's going down the stairs
Where's the teacher?
He / She's in front of the class / the board / between the board and the students.
Where are they going?
They're going out of the school.
Where's the dog?
It's next to the cat.
Where's the car?
It's in front of the house.
Where are they going?
They're going into the house
Where's the red book?
It's between the lamp and the cellphone.
Where's the student?
He's next to the teacher.
Where's the cat?
It's on the sofa.
Where are the shoes?
They're under the bed.
Where's she going?
She's going up the stairs
Where's the coffee table?
It's between the chairs.
Where's the cat?
It's opposite the dog
Where's the dog?
It's under the table / desk
Where are the children?
They're in the closet.