How many pages of this book have you read 为何用have不用did

How many pages have you read by the end of last year? have you read this book? How mang pages have you read by the end of last year?改错 为什么用how many times have you read it而不用how many times have yo How much of that book have you read? 1.—How many of these books have you read? how many pages do we have left? Have you read this book yet? have you read this book before? I have read this book already.How long___you____(read)it? how many books you have read主语 How many book do you have?- - -