You'll pay it off for what you do .语法有错吗?

You'll pay it off for what you do .语法有错吗? What time do you knock off? off 后有宾语吗?语法高手来 what do you do for it What do you do for it?是什么意思 ____ it with me,and I'll see what Ican do for you. I'll pay you back for what you did to me i'll have you ______(pay)for what you have done I'll pay you back for what you did to me. I'll be waiting for you till the end.语法有错吗?我会等你等到最后 I know it necessary for you to learn English.语法有错吗 If you _ the library book,you'll have to pay for it. I bought a new kite for you .I'll give you it tomorrow.哪里有错?