The punctuation of the above sentence is: "Yes, Tommy's dog has puppies."

Punctuation is missing in the given sentence. The correct form would be: "Punctuation, Mrs. Smith, may I carry your box?"

It should be ----- I said, "Who are you?"

Punctuation after Ms is optional. ======================== I disagree. Punctuation following Mr and Mrs is becoming optional, but I would respectfully submit that it is incorrect to place a period after Ms, because Ms is actually a word and not an abbreviation (as are Mr, for Master, and Mrs, for Mistress).

The punctuation in the sentence "Dear Vivian, how's summer going for you?" are inverted commas, a comma, an apostrophe and a question mark.