فى الوحدة الاولى فى المحادثة
Have you finished

,وفى التدريبات موجودة بصيغة اخرى
Are you finished


الصح الجملة الاولى ام الثانية ؟؟؟ وشكراً

Both are right
the first sentence is present perfect
Have+subject+p.p?
the second sentences is present simple
are+subject+adjective?

Both questions are right,but Have you finished? is more polite.While Are you finished? is used commonly among friends

الاولى هى الصح وانا كمان فكرت فى نفس الكلام لانها التانية صفة ولا علاقة لها بانتهاء الفعل والله اعلم

I'd like to tell anyone who is not specialized in English , shouldn't give his opinion . Secondly , to remind you that the book is American and is no longer being taught there now due to being old and not coping with the modern age , taken and adapted by two careless ladies for the Egyptians , not caring for our customs and our examples , our priors and habits ....and so on , they just changed some kind of clothes and names .
concerning the question
are you finished?
slang american
have you finished ?
is the right one but the other one is right for the americans and not for the language

I'd like to thank all friends who participated