Never wach ballet,and my sister doesn't

1.never wach ballet ,and my sister doesn't.............
a.too   b.so   c.either    d.like that
2.teenagers in viet nam like K-pop,and they like Korean films.........
a.too      b.either    c.so  d.education
3.today,subijexts like music and arts are put inot the school..........in viet nam
a.school year   b.subjects   c.curriculum     e.ducation
  4.for many people ,a good knowledge of music and arts is regarded as a.............
a.necessary    b.need    c.needs       d.necessity