請提供關於 1.where did you live when you were studying in Korea?
2.where were you living in Korea before?
2.Where did you live in Korea before?

Can somebody help me to correct these sentences? and what's the difference?
thank you 的例句給我。請盡量是生活中經常用到的句子。

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1. Where did you stay when you were studying in Korea?
Asking about the specific place where someone have stayed while studying in Korea.
Itcould be on a dorm, hotel, or an apartment.
2. Where were you in Korea?
Asking about the location.
It could be in a city or province. Or it could be the complete address