Em ordem é:
- hacía
- había
- iba
- era
- comentaba
- preocupaba
- pedía
- llevaba
- necesitaba
- estaba
The correct subject pronoun is "usted" because it is the singular form of "you".
Answer:
I choose number 4) les because it sounds right
If you are referring to the United States, it would be A. If you are referring to Mexico, it would be B.