how long can he____this book

how long can he____this book how long can i ________the book? How long can I ____ this book? How long can the book be （）? How long can I borrow the book? How long can I ____the book How long can I（）this book?Two weeks 选择 How long can I keep this book?是什么意思 How long can he keep/keeps the book? How long _______ the book _________(can keep)? Could you tell me how long I can keep the book.为什么用I can Could you tell me how long I can keep the book?