Grammar exercises · 12 questions
Oxford comma exercises
In short
Test yourself on oxford comma with 12 interactive questions. Every answer comes with an explanation — and if you get one wrong, the AI tutor can explain exactly why your answer didn't work.
Question 1 of 12
Which sentence is punctuated correctly?
Shaky on the rule?
Guessing gets you through a quiz; understanding gets you through the exam. Read the full Oxford comma lesson — The Oxford comma (or serial comma) is the optional comma placed before 'and' or 'or' at the end of a list of three or more items: 'coffee, tea, and juice.' Both using it and dropping it are correct in standard English — the only rule that matters is staying consistent throughout the same piece of writing.
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