When to use apostrophes - Laura McClure

source: TED-Ed      2015年7月27日
View full lesson: http://ed.ted.com/lessons/when-to-use...
It’s possessive. It’s often followed by S’s. And it’s sometimes tricky when it comes to its usage. It’s the apostrophe. Laura McClure gives a refresher on when to use apostrophes in writing.
Lesson by Laura McClure, animation by Karrot Animation.

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