Use one or more of these in a story. They can be dialogue, as I have it, or woven into the narration. They can be a beginning or an end or show up in the middle. You may not finish your story in the time you have. Just write as much as you can.

Keep in mind as you write that everything in fiction is connected. Dialogue reveals character; character produces dialogue (or even silence).  

“Do you think these fangs are just for show?”

“You’re staring at me.”

“You’re not me. I’m me!”

“Please help me climb down.”

“I always wanted to kick someone through a portal.”

“Hmm. Um. Er.”