"when will be convenient for you to come?"中空处填it还是there请说出原因

when will it be When will you be my When will your test be? when will i be rich When will you be free this week? when will the man be off 翻译 When will love be through with me? When will the son be back? Sad when there will be more or i will be right here remembering when . When Will I Be Loved 歌词 When Will I Be Loved 歌词 When and where will the World Expo will be held? When will you be arriving 和When will you arrive 有什么区别 It will be five years since we meet again.为什么用will be 还有when? when we went out ,the young man will be disappear是不是填will be disappear when we went out ,the young man will be disappear是不是填will be disappear advise when a new contract will be required.will be。在这时被动语句吧？