Answer:
an unsolved mystery
a story based on historical events
a love story
an action-packed story
a story about the future
Explanation:
All of the elements can be part of a fictional book, with a fictional narrative. A fictional narrative is one in which an author creates in the world of imagination, a story narrated by a narrator and lived by his characters. For the distinction between fictional and non-fictional narrative to become clearer, it is good to remember, for example, that newspaper news is also a nonfiction narrative because it reports facts of reality that deserve to be disclosed.
