Answer:
1. No encuentro mis cosas porque la habitación está desordenada.
Translation: I don't find my stuffs because the room is disordered.
2. Los botones están listos para llevar mis maletas al tercer piso.
Translation: The bellhops are ready to take mi suitcases into the third floor.
3. Dicen que Julieta está enamorada de Romeo.
Translation: They say that Julieta is in love with Romeo.
4. La casa de mia abuela esta limpia.
T: My grandmother's house is clean.
5. Los niños están felices porque van a la playa mañana.
T: The boys are happy because they go to the beach tomorrow.
6: No, amigo estás equivocado.
T, No, friend, you're wrong.
7: Nosotros estamos aburridos...
T: We're bored.
8: (...) Pablo y Rosa están nerviosos.
T: Pablo and Rosa are nervous.
9. Ana está cansada; quiere dormir.
T: Ana is tired, she want to sleep.
10: Si, Carlitos está seguro.
T: Yes, Carlitos is sure.
Explanation:
They are adjectives that you must make coincide with the subjects.