Вставить прилагательные в сравнительной или превосходной степени, 1) which do you think is the ... building in Moskov

1) Which do you think is the most beautiful building in Moscow? 2) Autumn is the most difficult season of the year. 3) Is history more difficult than botany? 4) Which is the largest city in Russia? 5) This exercise is better than the next one. 6) Ivanov is the best pupil in our class. 7) Literature is the most interesting subject for me. 8) Are there more than 20 pupils in your class or fewer?