Решение:
- Winter is the coldest season of the year.
- Moscow is larger than St. Petersburg.
- Which is the longest day of the year?
- The Alps are the highest mountains in Europe.
- Even the longest day has an end.
- It is one of the most important questions of our conference.
- Your English is better now.
- Who knows him better than you?
- We have less interest in this work than you.
- Health is better than wealth.
- He worked best of all.
- Today he worked more slowly than usually.
Ответ: Скобки раскрыты с использованием правильной степени сравнения прилагательных/наречий.