Ph.D.
Since it traditionally stands for "Doctor of Philosophy", both the "Ph" and the "D" should have a period following them, according to AP, American Psychological Association and many other style manuals.
PhD
The Chicago Manual of Style adopts dropping the periods in academic degrees as their standard.
YES
No, that is not the correct spelling.The correct spelling is punctuation.An example sentence is:It is important to use the correct punctuation when writing an essay.
LLC
"train" is correct - it doesn't require any capitalization or punctuation.
PA
"Mlle" is correct. No further punctuation is necessary.
The correct punctuation for "The holidays, in my opinion, are depressing."
The correct punctuation change is: "The composer had a preponderance."
The correct punctuation for "Sam is scared" is a period (Sam is scared.).
The correct punctuation for the sentence is: "Can you point me towards the elevator?"
Highway can be abbreviated to hwy. or Hwy.
The US punctuation is: Yes, if I am correct, the answer is fifty-five. (or) Yes. If I am correct, the answer is fifty-five.
It would be: Yes, we can. (or more emphatically) Yes, we can!
The punctuation for the sentence is " No, I have never been to Europe."
The correct punctuation after the word "Hi" is usually a comma. For example: "Hi, how are you?"
YES
It can be--- Queen Mary's ship.