She was wondering whether they've (A) completed their lifeguard training.
Contemptuous ridicule or mockery
Answer:
You are, of course, my favourite student.
Explanation:
Commas can indicate pauses or short breaks, as they do in this sentence c: Read each sentence aloud, and take a short pause for every comma. You can't do this with every sentence, however, but it should help most of the time!
