when will you leave for Beijing.A for.B inwhen will you leave for Beijing。什么 three .days.A for.B in
问题描述：
when will you leave for Beijing.A for.B in
when will you leave for Beijing。什么 three .days.A for.B in
答
B
答
B in
问题是,问你什么时候动身去北京?
回答, 3天后.in three .days 就是此意.