I am so sorry right now I can't think of anything however I can give you tips to writing one!!!! When you write a really short story the easiest way in my option is to add semi-colons. Also, make sure to include a who, what, when, where, and how in each sentence to make the story contain more information. Also if you want you can end in a cliff-hanger which makes you be able to not write as much. Your teacher is probably looking for you to have a conflict so make sure to include a problem in your story!!! I really hope this helps!!! Good luck I am sure you story will end up being AWESOME!!!! :)