1. Winter is the coldest season of the year.
2. Moscow is larger than St. Petersburg.
3. Which is the longest day of the year?
4. The Alps are the highest mountains in Europe.
5. Even the longest day has an end.
6. It is one of the most important questions of our conference.
7. Your English is better now.
8. Who knows him better than you?
9. We have less interest in this work than you.
10. Health is better than wealth.
11. Your son worked best of all.
12. Today you worked more slowly than usually.
1) Winter is the coldest season of the year.
2) Moscow is larger than St.Petersburg.
3) Which is the longest day of the year.
4) The Alps are the highest mountains in Europe.
5) Even the longest day has an end.
6) It is one of the most important questions of our conference.
7) Your English is better now.
8) Who knows him better than you?
9) We have less interest in this work than you.
10) Health is better than wealth.
11) Your son worked the best of all.
12) Today you worked more slowly than usually.
3. who
8. who
10. where
вроде так