Grammar exercises · 12 questions
Comma rules exercises
In short
Test yourself on comma rules 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
Choose the correctly punctuated sentence.
Shaky on the rule?
Guessing gets you through a quiz; understanding gets you through the exam. Read the full Comma rules lesson — A comma (,) marks a short pause that separates parts of a sentence: items in a list, two independent clauses joined by and/but/so, introductory words or phrases, and extra, non-essential information. Commas are never used alone to join two complete sentences — that error, a comma splice, is one of the most common accuracy mistakes in IELTS writing and speaking.
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