Yuffie is an optional character so theres nothing really change the story, the only not so bad side of not getting yuffie is you wont get the Leviathan Materia.
i think you can try it again
You should be able to talk to your teacher and take it after the rest of the class took the test. Usually, if you do not take your final, you fail the class. Hopefully that isn't the case for this.
Getting a zero on your final can drop your grade by at least two letters, so there is a good chance you would fail.
You fail!
fail
Then you fail
NO
They would all fail, they work together.
You fail the test.
why do people die? It happens.
It gets warmer.
it blows up and you will die!