I burn my hand while I was cooking.
How did your burn your hand?
Yes, I tripped in my way home.
Did you trip in your way home?
She twisted her ankle while she was running.
How did she twisted her ankle?
Roger didn’t bump his head on the cupboard, he bumped it on the door.
Did Roger bump his head on the cupboard?
The boys didn’t hurt themselves playing football.
Did the boys hurt themselves while playing football?
I didn’t bruise my leg when I fell.
Did you bruise yourself when you fell?
I broke my wrist while playing volley ball.
How did you break your wrist?
No, David didn’t cut himself while he was shaving.
Did David cut himself while he was shaving?