College Composition / Unit 7 CMP 0170 short lesson, about 20 seconds
Commas That Change Meaning
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The idea
A single comma can change what a sentence claims.
In practice
"The students, who studied, passed" says every student studied and passed; "The students who studied passed" says only those who studied passed.
Where people slip
On revision items, read the comma as part of the claim, and choose the version that says what the writer means.
Your place on the trail
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Unlocks
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