label read_paper
@pause for 10
NARRATOR
Are you done reading, or do you need more time?
choice
“I’m done” {
NARRATOR
Okay!
}
“I need more time” {
goto read_paper
}
This code should help you out with that. It’s looping so the reader can go back as often as they need 
And after the choice brackets just continue writing your story as usual.