Nomnative and Objective Case pronouns. Can someone check my answers please? Thank you so much!!

Directions: For each of the following sentences, identify the correct pronoun in parentheses.
(I put my answers after the sentence)

1. Kiyo and (she, her) have been friends since third grade. She
2. On stage, a magician mysteriously sawed (she, her) in half. She
3. Studying the martial arts taught Sara and (me, I) valuable skills. Me
4. The one with the most baseballs cards is (he, him). Him
5. There is an empty lot between the river and (we, us). Us
6. Ahmed and (he, him) sliced the cantaloupe. He
7. The conductor showed (we, us) how to use a baton. We
8. There are some differences of opinion between Bill and (I, me). Me
9. The yoga instructor taught (we, us) new stretches. We
10. Will the next volunteer be (she, her). She
11. The Clarks gave the puppy to Sandra and (she, her). Her
12. Siamack and (he, him) speak Farsi. He
13. The customers who ordered juice were Becky and (she, her). She
14. It was (I, me) who wanted to speak to you. I
15. The captain of the football team is (he, him). He
16. May Mark and (I, me) borrow your paintbrushes? I
17. I lent (he, him) my favorite jacket. Him
18. Were (they, them) your grandparents? They
19. Did you see (she, her) before she left? She
20. Jason and Susan helped Sarah and (he, him) with their homework. He

Thank you so much!!