I pay two yuan for book,还是把I改为I'm?

I need to pay three yuan for the book.(改为同义句) I pay 10 yuan for the book同义句型转换 pay for sth的意思 I pay 5yuan for the book的意思 I cost ten yuan for this book. I spent ten yuan on the book.I ____ten yuan ____the book.改为同 I spent ten yuan on the picture.与 I pay ten yuan for the pic 是pay the book 10yuan还是pay 10yuan for the book,还是别的说法 I have ( )the book for two years. I spend five yuan on the book改为同义句 I spent ten yuan on this book.改为否定句 i'm off for two I paid 20 yuan for the new book.(改成同义句) I ______ 20 yuan ___