Could you please tell me about the best-punctuated?
(casual spoken sentences)
(There is a slight pause after the word is)
The mystery is,did Tina hear your voice? The mystery is: did Tina hear your voice? The mystery is -- did Tina hear your voice?
Just to make sure I understood you correctly,am I supposed to return the money? Just to make sure I understood you correctly. Am I supposed to return the money? Just to make sure I understood you correctly-- am I supposed to return the money?