5) Museums,theatres,different art exhibitions are connected with arts.
6) Speaking about different periods ,we mean the constant development of arts.
7) I can go to the theatre or to the Arts Museum.I usually go there with my friends.
9) I guess,the most popular arts nowadays are theatre and cinema.I don`t think that some arts have become extinct,they are just not so popular.
10) Cinema is more popular than theatre,however I prefer theatre.
11) No,I don`t think so.