Where is your bag? it`s where is your? where is your ruler? where is your rubber? where is your pens? where is yourpencils? where is your exercise-books? on ,under, near, in

1) It's in my car.
2) It's under my table.
3) It's on my table.
4) It's near my pencil-case.
5) They're in my pencil-case.
6) They're in my backpack.
7) They're near my chair.