1 - c
2 - f
3 - a
4 - e
5 - d
6 - b
Объяснение:
1. I'm taller than - c my friend.
2. Kayaking is more - f exciting than cycling.
3. Hamburgers are better than - a hot dogs.
4. Walking is slower than - e running.
5. Winter weather is worse than - d summer weather.
6. Geography books are more - b interesting than Maths books.