Answer:
All but the last one is correct
Explanation:
Ustedes (ser) is not tienen but 'son' meaning 'You all are' (both formal and informal)
Answer:
IS A
Explanation:
because since Juan has a lot of work, as the question says, the correct answer would be that he is busy, and option A is the one that says that he is very busy. I speak Spanish and it makes sense to me
Porque a veces puede ser un trabajo que quizas les importe mucho. Digamos ques es un trabojo para limpiar un parque, quizas el parque este muy cochino y esta junto de su casa y no les gusta ver eso, etc.
The answer is (acabe) because it refers to the fact that he has not finished his studies and when he finishes it he could finally be an astronaut.