How long did you stay in hospital? l stay there ____ two mon

How long did you stay in hospital? l stay there ____ two mon How long did you stay in hospital?l stay there ____ two mont How long did you stay there? how long did you stay in Beijing? how long did you stay there?能否改为 how long did you stay at th How long did you stay there? 应该怎么回答 how long did you stay there/have you been stay there有什么区别? --How long will you stay there?--For__. HOW long will you stay there How long will you stay in Shanghai? How long did you stay at the party?I only stayed there（）hour how do you feel when you stay in hospital