The apostrophe actually makes it a contraction, not possessive. So they're really saying "the underpaid teacher who bought it with it is own money". I know not everyone cares, but that's how our weird language works...
The apostrophe actually makes it a contraction, not possessive. So they're really saying "the underpaid teacher who bought it with it is own money". I know not everyone cares, but that's how our weird language works...