I don't know when__back to Beijing.When__,I'll call you.A.going;arriving B.to ;go C.going ;to arrive D.to go ;to arriving

I don't know. “i don't know you know i don't know sorry,I don't know. i don`t know much I don't really know. 英语；I don't know I don't know miss I don't know him. I don't know now 翻译 i don't know So know,I don't I don't know her i don't know anything I know enough to know that I don't know i don't know what i I don't think I know you I don’t no I don't know I don't knw I don't know翻译中文,