Which of the following sentences is missing a hyphen?
O
A. I had to jump-start my car this morning.
B. The machine-gun sound of the nail gun was disconcerting.
O
C. My friend wants to be a stand-up comedian when she graduates.
O
D. That run down shack should be condemned.

Here's the answer to the best of my ability..

You're asking for what sentence is missing a hyphen and I see nothing wrong with the one sentence that doesn't have a hyphen.

But if you're asking for what sentence is using a hyphen incorrectly then option B is your answer because machine gun doesn't need a hyphen.

If you're asking which sentences are using the hyphen correctly then option's A, and C are your answer.

If you're the question you asked has no mistakes then the best answer would be option D because that's the only option without a hyphen.

Hope this helps.

the correct answer is c. he speculates on what might happen at given points in the future in a world without people. alan h. weisman is an american author, professor, and journalist. authors organize their information with a purpose. they present their ideas in an organized way. this is called text structure. weisman uses text structure so as to improve overall comprehension and to prove his points.