First do some research ab that stuff and see what you find ♀️
Answer:
Tu: It stays the same of we are talking to another person but if we are talking about ourselves it becomes yo.
Pagar: If WE are paying it becomes Pago. Example: Yo pago mi almuerzo. But if we are talking to someone else it becomes Pagas. Example: Tu pagas el almuerzo.
Hope it makes sense!
1. estudio
2. come
3. escuchas
4. escriben
5. aprendo
6. subes
7. caminamos
8. abre
9. descansáis (not sure about this one)
10. recibimos
11. pasan
12. beben
It would be "ponga". "No ponga el dinero en el bolsillo"