example 1: Voy a ser mejor alumno. Ser was used in this sentence because it means going to be and it makes sense in this context
(another example could be "Puedo ser eso?" if the first one isn't good enough)
example 2: Voy a estar en mi casa este sabado. Estar was used in this sentence because it can mean present but in most cases the future which would be "will be" or "going to" which makes sense in that context.
Sorry if this is bad I tried to explain it the best I could!
Answer:
7. trabajadores
8. pacientes
12. deportistas
14. malas
Explanation: I hope this helps you :)
The answer is Chico estudiosa
sería "es" y "un" according to ur questions
Answer:
1. Sara, Laura, y Diana son chicas estudiosas. 2. Oscar y Justino son unos chicos serios. 3. Sara y Laura son amigas trabajadoras. 4. Daniel es un chico desorganizado. 5. Diana es una chica alta. 6. Oscar es un chico alto. 7. Sara es una estudiante pelirroj. 8. Justino es un chico grande.
Explanation:
Hope this helped!