What happened?
He tripped on the tyre.
What happened? Use "it"
It broke its leg
What happened?
She fell off the bike
What happened?
He spilled his coffee.
What happened?
He slipped on ice
What happened?
He hit his head.
What happened? Answer using "she"
She crashed her car
What happened?
He cut his finger.
What happened?
He broke a glass.
What happened?
She hurt her back
What happened?
He fell off his bed.
What happened?
He burnt his hand
What happened?
She sprained / twisted her ankles.
What happened?
She broke a plate.