Essentially, if the apostrophe is after the s, rather than before, it means that the sentence is referring to more than one grandparent, and their possession of more than one thing. Say your grandparents owned goats. You would refer to that as your "grandparents' goats" whereas, if they owned just one cow, it would be your "grandparent's cow." Hope this helps!
They think that Betty has been bewitched so if she really was she would not be able to survive hearing the Lord's name. More likely the reason was that she heard everything about the affair between John Proctor and Abby.
Machiavelli uses reasoning and an example as evidence in an argumentative structure to support his claim that a prince must destroy a city that is accustomed to freedom if he wants to hold it.
