Here's the story we did in Spanish 1 for the 2nd quarter. My version is about an elephant who wins the lottery and goes out shopping with his friend Minnie Ratoncita. In the student version, students collaborate to fill in blanks and make the story their own.
The questions they confused were the ones about how they went shopping and where they went. They at first confused the word cómo for dónde, but once they read the context and the following question, they ended up correcting it themselves. They did this with a sub while I was away at a conference, and by all reports didn't have any trouble with it. I'm so proud of them!