l have to be back tomorrow.其中back是何词性是何意思?

l have to be back tomorrow.其中back是何词性是何意思? l have to be back tomorrow.其中back是何词性是何意思? be traced back to get/be back to somewhere be back to yourself 是什么意思 Have to go back to work. At least, I have U to be my back, be happy!怎么翻译,什么意思 L wang to be ... wye i will miss you i want be with you but you have to be back to the home Dave sends the boys back to school,where they have to learn to be ordinary school kids. she expected me to have an opinion and to be able to back it up求翻译 , 英语翻译my friend,Alice works at a bank.One moring l went to see her.l thought maybe she had time to have lunch with me.When l got to the bank,l was told she had just been out for a few m___ .l asked them if she would be back by 11：30,and they 英语翻译my friend,Alice works at a bank.One moring l went to see her.l thought maybe she had time to have lunch with me.When l got to the bank,l was told she had just been out for a few m___ .l asked them if she would be back by 11：30,and they 求帮翻译!that used to be my name can i please have it back I have to anwer the phone,but I'll be r( )back I have come so far,I can't go back where I used to be. I Have come SO far ,I can't go back where I Used to Be I expect____next week.A.be back B.to be back C.being back D.back