2. Ask questions, to interrogate is to ask questions
3. Possessive pronouns are not written with apostrophes and contractions are. A possessive pronoun indicates ownership while a contraction combining two words: (do-not) (have-not) (they-are)
4. True, an indefinite pronoun is a pronoun that refers to non-specific beings, objects, or places
"D an autobiography by calamity Jane" would be a primary source that would provide the most reliable insider view of a particular event, since an autobiography is a text that is written by the subject in question.