A____ ,we have read the great book before They are readingth

A____ ,we have read the great book before They are readingth 1.A____ ,we have read the great book before 2.They are readi They _______(not read ) the book before ____ they read the book before?参考答案填Have,那么填How long did 为什么 social the great books are read because they have been read— 1.We are short.2.She is thin.3.They read book.4.The farmers He seemed to have read the book before.转换句子 you haven't read the book before ,have you?____ I( )the book twice before:A.read B.have readed C.have read D They are ___(read) book 改为被动语态 They have read the book three times. have you read this book before?