I found the following sentence in my textbook:
Lo espero a él
As far as I know doesn't it mean something like "Him I wait for him"? Why is a él necessary?
It's not necessary. You can say:
Lo espero
But its not clear. What "Lo" means?
Is it a persorn?
Is it an object?
¿Te ha llegado el correo?
No, todavía lo espero.
¿Vas a aprobar este examen?
Lo espero
When you use él (him), you refer to a person. For example:
Lo que diga él. (What HE says)
Dile a él. (Tell HIM)
When you use el is a definite article used before a noun if it is masculine such as la if it is feminine.
El carro. The car
La guitarra. The guitar
1 - "Pedro" lo espero a él
-
2 - "Marta" lo espero a él
-
3 - "El perro" lo espero a él
Who is "el"?, él is a masculine person.
él is no nessesary, but, is gramaticaly correct.