14. choose the correct sentence: el libro mi mi el libro el libro mío * mío libro check my work, i marked my answer with a *

The correct answer would be "el libro mío" or you can also say "mi libro" which mean that that book belongs to you.
"el libro mi" --> mi is not place in the correct place so as I said before it would be place before the noun.
"mi el libro" again the position of "mi" s incorrect and "mio libro" has no sense bacause of the meaning of words. "this book is mine" "el libro es mio"

B. comprarías is the correct answer

Lo que necesito para la escuela es 5 lapizes carbon numero 2, una mochila que sea de color negro, una cartuchera para los lapizes y colores de color azul, y tambien mis 5 camisas de uniforme de color verde, y 5 pantalones de color rojo, y una peluca de payaso para que vean que tan pinche pendejo soy. good luck ; -)