En las arruinas de El Salvador, puedes ver la vida Maya que fue preservada por las capas de seniza volcanica.
Answer: Question 1 is A. C is wrong because without much notice would be informal. B is wrong because posting it on the newspaper it would be visible to everyone even people you don't know.
Question 2 The answer would be B because Madrid is the largest city in Spain. Answer A and C is wrong because both of them are true.
Question 3 the answer is B. Sorry I can't give an explanation I have to go. Let me know if these answers are correct.
Explanation:
1. Rafael tiene pelo rubio
2. Laura y Raquel tienen pelo castaño, son muy altas, tambien son muy inteligentes.
3. Rafael no es un estudiante bueno
There you go your answers! Hope it helps you:)