1. He has a laptop computer on his desk.

His feet are also on his desk.

office worker
 2. My friend Pedro lives in an apartment on this street.
street
 3. She has a ring on her finger.
ring

 4. He has a hat on his head.

He also has some sunglasses on his face.

man wearing a hat
 5. He’s not going to be on time.
running late

 6. She’s riding on a skateboard.

skateboarder
  7. He’s riding on his father’s shoulders.
father and son

 8. The news is on TV.

 She’s reporting about a house that is on fire .

tv

 9. These children are running on the beach.

running on beach
ketchup on his tie

 10, He spilled ketchup on his tie.

There will be stain on his shirt and on his tie if he doesn’t clean them.