I'm pretty sure you would put "Leo" in the blank space because the verb "leer" means to read and the sentence prior to the blank space says "the magazine 'Cosas (or Things)' is my favorite. I read it every month. Hope this helps!
Juan: Necesito el recibo: ¿Usted me podría dar uno?
El tintorero: Sí, por supuesto
Answer : A.) podría
A quick look on the map shows that Cameroon and Gabon border Equatorial Guinea!