Английский язык шестой класс сор​

Are there a lot of famous theatres and galleries, aren't they? -с хвостиком общий   are there a lot of famous theatres and galleries? альтернативный   are there a lot of famous theatres and galleries or forests and lakes? the bolshoi and the maly theatres are in the centre of moscow. aren't they? are the bolshoi and the maly theatres in the centre of moscow ? are the bolshoi and the maly theatres in the centre   or in the north  of moscow?   is the yury nikulin old circus one of the oldest circuses in russia, isn't it?   is  the yury nikulin old circus one of the oldest circuses in russia?   is  the yury nikulin old circus one of the oldest   or the youngest circuses in russia? was   the circus rebuilt in 1980s, isn't it? was   the circus rebuilt  in 1980s? was   the circus rebuilt  in 1980s or in 1990s? is there  the moscow dolphinarium, isn't it? is there the moscow dolphinarium? is there  the moscow dolphinarium or the moscow  oceanarium? which performance is longer: dolphinarium's or circus?