1.La 2. Los 3. Unos 4.las :)
Answer: "el tuyo móvil" means the phone of other person "el móvil tuya" it means your phone but i can say that it's right my question because i didn't understand to much about what you write.
Explanation:
1. <span>EL PROFESOR
2. LA CLASE
3.</span><span>LA ESCUELA</span>