A subject pronoun is what you call someone, for example you, him, and they. To greet your doctor you should use usted which means you but is only used formally in Spanish. To greet your best friend you would use tú because it also means you but it is informal and you would not talk to your best friend very formally. This is different from English because in English there is only one way to greet someone, ‘you’ while in Spanish there is an informal way ‘tú’ and formal way ‘usted’.
Answer: Los Andes.
Explanation:
La Cordillera de los Andes, ubicada en el occidente de América del Sur, es la cordillera más larga del planeta. Su altura media está entre 3000 y 4000 msnm. En el extremo sur, <em>los Andes Australes</em>, es una frontera natural entre Chile y Argentina.
Chile ha sido considerado uno de los mejores lugares para observar el espacio, principalmente el <em>Desierto de Atacama</em>, donde están algunos de los observatorios más modernos del mundo. Esto se debe a la contaminación lumínica y radioeléctrica, a las altas cumbres y poca humedad de la zona.
<em>Espero que esta información sea de ayuda.</em>
It generally depends on the teacher you're working with. But to be on the safe side, I'd incorporate your first and last name, the date the assignment was finished on, which assignment it was, and your teachers name. Anything else like lesson number and school name can be left out, but you might want to annalyse it before forgetting, or adding it in.
