This punctuation can be quite subjective, as you do not know what the writer meant intentionally. That is why people use punctuation, to make meaning clear.
I believe the correct punctuation for this sentence is:
That that is, is; that that is not, is not. Is that it? It is!
(That which exists, exists; that which does not exist, does not exist. Is that about it? Yep!)
"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 the sentence is: "Can you point me towards the elevator?"
The correct punctuation for "Sam is scared" is a period (Sam is scared.).
"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 the sentence is: "Can you point me towards the elevator?"
The correct punctuation for "Sam is scared" is a period (Sam is scared.).
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.