Answer: B) Yours, possessive.
Explanation for this question is being written.
Answer: D) His
Answer: A) My
Answer: E) Possessive pronouns.
Answer: D) HIS
Answer: A) His/her
Answer: A) His
Answer: A) They're Mario's.
Answer: D) Our / his.
Answer: D) Your
Answer: A) Its
Answer: A) Her
Answer: B) Yours
Answer: A) Their
Answer: A) Adjectives
Answer: C) Her
Answer: B) Hers
Answer: D) Her
Answer: D) Our
Answer: B) Its
Answer: C) Yes, it is mine.
Answer: C) My
Answer: B) Her
Answer: B) I am his cousin.
Answer: B) No change.
Answer: D) Their
Answer: C) His / his.
Answer: C) His
Answer: B) Mine
Answer: C) Your
Answer: C) Mine
Answer: A) Your
Answer: A) True
Answer: B) Their
Answer: C) Its
Answer: B) Pronoun
Answer: D) Mine
Answer: A) Possession
Answer: D) Ours
Answer: B) Whose