sorry,I haven;t finished your book _____ ,but I;m going to.

sorry,I haven;t finished your book _____ ,but I;m going to. 英语高手进!Haven't you finished reading the book?_____,but I have I’m sorry I _____ your book; I only did it _____,I didn’t me You haven't finished your homework,have you?_____.Or I won't I ’m sorry to have said that ,but I don ’t mean to hurt your I'm sorry ___ that to your sister,but I didn't mean to hurt sorry your aunt was offended ,but I’m not going to take back could i use your book?i'm sorry but i( )use the book myself I am sorry I haven't got back to you soonet but I drove down Thank you for asking me to your party.But I’m sorry I can’t I'm sorry i am going to _____ to get to your house.为什么选带be的啊 I haven't finished my homework yet._____.