Solution:
Here are the completed sentences using prepositions of place based on the provided image:
- There is a radio on the bed.
- There are trainers in front of the ball.
- There is a football next to the shorts and the trainers.
- There is a poster on the wall.
- There is a pencil on the desk.
- There is a sock under the t-shirt.
- There is a bed next to the desk.
- The window is behind the curtains.
- There is a pillow on the bed.
- The poster is on the bed.
Note: The exact placement in the drawing can be slightly ambiguous, so some answers are based on the most likely interpretation of the visual cues.