서울식당이 어디에 있어요? Where is the Seoul restarant?
서울식당이요? 2층에 있어요. The Seoul restarant? It is on second floor.


수영 오빠 집에 있어요? Is Su-young in the house?
아니요, 집에 없어요. No, He isn't.

Are these sentences okay? 用 英語 (美國) 要怎麼說？

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서울식당이 어디에 있어요? Where is the Seoul restaurant?
서울식당이요? 2층에 있어요. The Seoul restaurant? It's on the second floor.

수영 오빠 집에 있어요? Is Su-young in the house?
아니요, 집에 없어요. No, he isn't.

good job : ) 수영 is usually translated as Sooyoung, but it works too