Answer:
the first one is the first answer (A?) & the second one is the 2nd answer (B?)
Nosotros = Us, we.
Vosotros = You all (plural)
I believe the answer to the first question is 'canta', and the second question's answer is bebe.
Both answers are used in the correct forms and should answer the questions.
Hope this helps!:)
12. Yo merezco una mala nota.
13. Yo le ofrezco mi tarea bien echa.
14. Todos dicen que you me parezco a mi mama.
15. Si, yo pertenezco a varios clubes en la escuela