The sentence that shows the correct use of apostrophes to shorten words is "She'd left her tooth under her pillow hoping it'd be replaced with a dollar by..."
How to use the apostrophe to shorten words
The apostrophe is used to shorten or contract words. It is placed when a letter or syllable has been removed. Let's take a look at the contractions used in the sentences provided in the question to see what is right and what is wrong:
- Sentence 1: "Why'd" is correct, but "their's" is not a real word. The correct word would be "there's".
- Sentence 2: "I'd" is not correctly used here. We can only contract "had" when it is an auxiliary verb. "Wors't" is also incorrect, since it should have no apostrophe.
- Sentence 3 - This is the correct option. "She'd" is the contraction of "she" and "had". "It'd" is the contraction of "it" and "would."
- Sentence 4 - "Should've" is okay, but "had'nt" is misspelled. The correct word would be "hadn't."
With the information above in mind, we can choose sentence 3 as the correct option.
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