What’s the question then?
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. Su madre es <u>puertorriqueña</u> y su padre es <u>estadounidense</u>.