1. Compound
2. Simple
3. Complex
4. Compound-complex
5. Complex
_________
1. while he ate
This modifier should be at the beginning of the sentence.
2. who is in college
This modifier should be immediately after Rob, between commas.
3.near the campsite
This modifier should be immediately after "the lovely lake".
4. near the campsite
Again, this modifier is related to the lake, not to the phone.
1. There is a spelling error or a typo. The grin should be described as "ear-to-ear", not as "ear-to-eat". There ar no dangling or misplaced modifiers.
2. Dangling
3. Dangling
Write about each topic one at a time. Be sure to not intermix two separate ideas in order to maintain clarity throughout. Do your best to stay on task and not get distracted or go off on unneeded tangents. I would also suggest to separate each topic/idea into its own paragraph indenting each time. That's my advice on keeping your prose writing clear and concise. Hope this helps!
-J
Answer:
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.