Which sentence uses commas correctly?
a. I wonder, Mike if everyone has already left.
b. Please Beth, feed the goldfish.
c. Theo, is there a bug on my back?
d. Whose, coat is that, Anna?
The answer is c. Theo, is there a bug on my back? This is because for the other three sentences, the commas do not agree with the places they were put in. If you read the sentences aloud, you can hear that it sounds awkward.