Yes, because it states a complete thought or fact. Any additional words would merely add additional information to the main idea.
The prepositional phrase in the sentence is "under the desk." It provides information about where Alan dropped the paper.
A sentence for dropped I accidentally dropped the phone while I was talking on the phone.
you missed a comma. Three young, pretty ladies dropped by the office.
A value that satisfies an open sentence is called a solution or a root of the open sentence.
No, it is not a preposition. Dropped is a past tense verb, and an adjective.
my jaw dropped open when i say the fireworks explode in the sinky twilight
No it is not a correct sentence. It should be "Her jaw dropped as though she had seen the devil."
a thing that open your jaw
"I just saw your jaw drop!"
He dropped the ball.
The operative word was dropped in the sentence, fragmenting it severely. I just dropped in to say hello. Dick dropped Jane's ball.
no because your jaw is broken.
You could get lock jaw which is where your jaw clicks into an open position and won't close again. To stop this would be to not open your mouth really wide and fast.
My Jaw Dropped
Look at the ground squirrel. My jaw hit the ground. Avoid becoming the path to ground for electricity.
It's broken
You have a tetanus because you have a locked jaw.