I would say the answer is Las muchachas son ricas. I’m very sorry if it’s wrong.
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:
Answer:
4. van
5. fue
6. van
7. fue
8. vamos
9. van
10. va
11. van
12. vamos
13. voy
14. va
15. fue
16. vamos
17. va
18. vas
19. vamos
20. van
Hope this information was of any use to you. (:
