Do you know if he＿back in two hours?

Do you know if he＿back in two hours? He will be back in two hours. Do you know ----------he will be back.that或if, He will be back in two hours .根据in two hours 提问 ___ he ___(go) back home in two hours? [ ] will he come back?In two hours.[ ],at 8;00. Do you know if ____back next week?If he ___ back,please let Do you know if he will come back next week?如果时间点为last week , Do you know if_____ back next week?If he _____back,we'll vis He will be back after two hours he will call you in two hours?对two hours提问怎么说 He comes back home late (用 in the two hours 改写）