Hi, Shawn.
I want to commend you on your use of subjunctive mood on number 10. To speculate about a person's desires would call for it. Good job on that!
The verb "comprarse," translates to "to buy oneself/herself/himself/yourself (formal)," which is distinct from "comprar," "to buy." "Se," is a reflexive object pronoun that is used for él, ella, and usted.
#1-10: "She bought herself" - Remember to include the reflexive pronoun in your translation.
#2: Also remember that an accent mark would sit over the "e" in quién.
#6: "Por qué" means "why?"
#10: Good use of subjunctive mood here.
Let me know if you have any other questions or would like to schedule a tutoring session.
Michael Monárrez