Explanation:
so the first question says that, how is the Spanish class? so you have to explain that
the 2nd asks about the other students in the class, How are they?
and the 3rd one who is the teacher of the Spanish class
I cannot know how is your class so you can explain that and I can help u with the translation
Alli esta is grammatically correct. It is correct because alli esta means "there is" and in your example, There is the first floor, sounds better. The first floor is there doesn't sound correct to me. Hope this helps.
I would say D) me gustaban because that would be saying you did not lake tomatoes.