Desvestirme is the right one :)
Answer:
6. Uds. son nerviosos.
7. Hoy es el nueve de octubre.
9. La mochillo es de Miguel.
10. Ud. esta contento
Explanation:
I'm not exactly sure what you're asking, but I'll try.
The answer is "compro" because it's past tense. I should know, I speak both Spanish and English.
