A teacher marks 'The dog wagged it's tail' wrong because the possessive form is:
AIsts
BIts
CIts'
DIt's
Answer & Solution
Correct answer: B. Its
1. The possessive of it carries no apostrophe.
2. Its followed by an apostrophe is always incorrect.
3. So the correct word is its.
_Source: OpenStax Writing Guide with Handbook, Handbook._
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