The answer to your question is A, C, and D.
Hope this helps!
I think it is formal it doesn’t say it formal but it does say the word usted is to show respect so i would say true its formal
1. estaba
2. sonaba, era
3. preguntó, quería
4. dijo, podía, tenía
I hope they’re the right answers. Let me know!
Escriba su nombre is the answer
