I/
1. Where's the chair?
It's behind the desk.
2. Where's the ball?
It's under the bed.
3. Where are the posters?
They're on the wall.
4. Where are the coats?
They're on the bed.
II/
1. They're next to the curtain.
2. It's behind the desk.
3. It's on the wall.
4. They're on the table.
5. They're under the bed.
III/
1. It's on the desk.
2. They're on the bookshelf.
3. It's on the bed.
4. They're on the wall.
