He will be back （）three days.选in还是for,说明理由,什么时态用哪个

He will be back （）three days.选in还是for,说明理由,什么时态用哪个 He will be back in three days.（对划线部分提问,划线部分是in three days） He will be back in four days [ ] will he come back home In three days. she will be back in three days 对 in three days 进行提问 My brother will be back（ in three days）.对括号部分提问 She will be back in two days.(用for two days改写) He will leave ______ Beijing in three days.是填for还是to啊, ----------will he be back 答语是He will be back in two days ,I 初中英语改错句1 What time will he be back?In three days.2 What a fi 1.He will be back in ten days. He will be back in four days .怎么问