Answer:
1. She never sent the letter.
2. Leo read the magezine.
3. He used the computer last night.
4. I turn the lights off when I go to sleep.
Explanation:
1. False, possessive pronouns indicate ownership
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