To steal is to take something that is not yours. The past is stole. When this happens, you report it: you tell the police.
Something is gone
Try it: Man: Someone broke a window in our building last night. Woman: Oh no! Did you ___ it? Choose what the woman says. (steal / report / find) Answer: report — You tell someone about a broken window, so you report it.
Word
Pronunciation
Example
steal
Someone stole my wallet on the bus.
report
I reported it to the police.
Lost things
A lost and found is a place for things that people lose. Belong to + a person says whose thing it is: this bag belongs to my sister.
Try it: Woman: Is this your coat? Man: No, it ___ my brother. He left it here. Choose what the man says. (belongs to / reports / steals) Answer: belongs to — The coat is his brother's, so it belongs to his brother.