X.Заполните пропуски прилагательными в соответствующей степени сравнения.

1.Electronic computer became an (important, more important, the most important) device in our society.
2.After Moscow St.Petersburg is the second ( large, larger, the largest) and (important, more important, the most important) city in Russia.
3.Cambridge University is one of ( old, older, the oldest) universities in Great Britain.