Answer: The answer is Son
Explanation: It is the masculine form of "they are" which when added to the sentence means "My brothers are very hardworking."
¡ Hola !
don't know which adjectives you've learned !!
1- Sí, es muy fascinante.
2- Sí, me encanto.// es atrayante
3- No, es muy difícil.
4- Sí, es provechoso
5- No, no es maravilloso
6- No, no es apasionante
7- Sí, es útil.
8- Sí, es atrayente./fascinente
it would have been easier if you'd posted the adjectives you learnt .. Did my best. Hope it helps :)
Answer:
Antonio Lava su carro los fines de semana.