How does Guy de Maupassant create suspense and surprise at the end?

This question is incomplete. Here is the complete question:

Reflect on your reading of Guy de Maupassant's "An Uncomfortable Bed" by answering the following questions about the mood and tone of the work. Consider the end of the story. How does Guy de Maupassant create suspense and surprise at the end?

Guy de Maupassant manages to create an atmosphere of humor and suspense since the story from the beginning is humorous, however for him it is a serious situation and he does not know what will happen next.

Explanation:

The author throughout the story has the reader wondering what will happen next, even though everything that happens ends up being hilarious.

He is in his room in the dark, which creates an atmosphere of suspense but never abandons his humorous tone.

In case the protagonist's friends were very pranksters and he could even hear their laughter in the corridor since he enters the room and closes it.

The suspense is so much about "what a joke could happen next" that in the end, the disaster ends up being made by the protagonist himself.

mi hermana "sabe" bailar salsa. "conoces" tu el monumento la mitad del mundo? raul y yo sabemos al profesor de matematicas.

translated: my sister "knows" how to dance salsa. "do you know" the monument half of the world? raul and i "know" the math professor.

1. read the following excerpt from franklin d. roosevelt's "fireside chat 19":

on the other side of the picture, we must learn also to know that guerilla warfare against the germans in, let us say serbia or norway, us; that a successful russian offensive against the germans us; and that british successes on land or sea in any part of the world strengthen our hands.

remember always that germany and italy, regardless of any formal declaration of war, consider themselves at war with the united states at this moment just as much as they consider themselves at war with britain or russia. and germany puts all the other republics of the americas into the same category of enemies. the people of our sister republics of this hemisphere can be honored by that fact.  

the true goal we seek is far above and beyond the ugly field of battle. when we resort to force, as now we must, we are determined that this force shall be directed toward ultimate good as well as against immediate evil. we americans are not destroyers — we are builders.

analyze the effectiveness of this excerpt. how does it function within the speech as a whole? how does the structure of the excerpt to convey the speech's purpose and key points? support your argument with evidence from the speech. (10 points)