I will be back in no time.(对划线部分提问)in no time是划线部分

i will be back in touch, I will be back in no time.(对划线部分提问)in no time是划线部分 “I will be back! soon i will be back in your arms I will be back in a couple of I will be back in a matter of hours. i will be back in touch,什么意思 I will be back in three days.为什么要有be 为什么不是I will back in three days. i will be back soon i will be coming back I will be back,from you won't be away for long,will you?如何回答?no,i'll be back in ten minutes对吗?请详细解释 I will be back,We will be back 这句话“i have no idea when he will be back这句话“i have no idea when he will be back ”这里为什么要用be 不直接when he will back 呢 i will be back为什么要be 76.I have no idea__she will be back.为什么这里填when而不填that? I have no idea()he will be back 补充什么英语单词?, I will be back in a minute.back不是动词吗?为什么前面还要加be呢?