stay in/ at one's house

[tranlam1609]

Lan is staying ... her aunt's house in Hanoi now.
A. in B. on C. with D. at
I chose D but the key is A. So what is the best choice? Please help me
Thank you very much.

 

[Barb_D]

I'd use "at" in that sentence, but I'd really say "Lan is staying with her aunt."

Note that "aunt's" needs an apostrophe.

 

[Gillnetter]

Lan is staying ... her aunts house in Hanoi now.
A. in B. on C. with D. at
I chose D but the key is A. So what is the best choice? Please help me
Thank you very much.

D is the best answer. A is acceptable but it sounds almost as though she cannot leave the house. John is staying in the jail until next week because he was accused of theft - he has little choice. John is staying at the jail because there are no other places for him to sleep - he does have a choice. My understanding of this matter may differ from others around the world.