-4 and -8. It should be correct because if you take the previous number and multiply it by 2, you would get the next number :)
Simpatica.
This is because Maria is a female and it is only her (singular).
The answer is A because all the others are wrong. You are saying that Marcos was studying when I arrived at his house.
Your sentence doesn’t make sense to me
'¿En donde esta localizada la escuela?'