Usted. you would only use tú for someone you are on first name basis with
Answer:
yes I think you are right
1. detrás
2. near
3. encima
4. lejos
5. en
6. encima
7. enfrente
8. between
9. izquierda
10. entre
Answer:
El ordenador
Explanation:
la computadora is a synonym of el ordenador
la silla= chair
la carpeta= carpet
and el ratón= mouse (of computer)