I’m not sure what you mean by affirmative but when adding pagar to a sentence that uses “ustedes” it would then become PAGAN.
Answer:
It would be "Yo <u>estoy</u> en la casa de mi amiga"
Explanation:
The word estoy means that you are in a specific location. The sentence translates to" I ___ at my friend's house." Therefore, the correct verb to go in the blank is estoy because it is a location.
Take note: estoy is ESTER verb
D because you test it before selling something. I hope is correct :D
No entiendo la pregunta losiento