Paige and David talk about using apostrophes to show that something belongs to multiple people.
Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/punctuation/the-apostrophe/e/advanved--plural--possesion
Watch the next lesson: https://www.khanacademy.org/humanities/grammar/punctuation/the-apostrophe/v/apostrophes-and-plurals-the-apostrophe-punctuation-khan-academy
Missed the previous lesson? Watch here: https://www.khanacademy.org/humanities/grammar/punctuation/the-apostrophe/v/possession-for-words-ending-in-s-the-apostrophe-punctuation-khan-academy
Punctuation on Khan Academy: Punctuation is the collection of squiggles, dots, and lines that we use to separate sentences and their parts. Is a question mark punctuation? Yes, and so is an exclamation point!
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