David will be back in two weeks（对划线部分提问）______ ______ ______ he be back?

“I will be back! i will be back soon i will be coming back I will be back,from I will be back,We will be back i will be back为什么要be David will be back in two weeks（对划线部分提问）______ ______ ______ he be back? I don't know____he will be back. I will be back?It is a i will be come back 和I will be back是 一个意思吧?I will be back 和 I will be come back一个意思么? I will be back 怎么读 i will be back in touch, i will be back什么意思 Thank you,I will be back i will be back什么意思 i will be back to you I WILL BE BACK HOME BACK HOME WITH MY LOVE I will be back 中back是什么词性?