One of the rules that we need most in this field:
Punctuate a fragment exactly the same way that you would punctuate the grammatically complete sentence that it stands for.
...Q What time did you leave?
...A I left at 10:00. I was a little late.
...Q What time did you leave?
...A At 10:00. I was a little late.
...I am sorry. I think I misspoke.
...Sorry. I think I misspoke.
...That's okay. I will just ask the question again.
...Okay. I will just ask the question again.
...He had been in that position for ten years; is that right?
...He had been in that position for ten years; right?
And if you agree with the first four, you have to agree with the last one. :-)
Happy punctuating!
Margie