I.
1. I have luch more healthily with salad and smashed potatoes than with burgers and chips.
2. That car goes more slowly than this car.
3. The more seriously you study, the better your English will be.
4. You improve more significantly than I expected.
II.
1. driving
2. raining
3. to answer
4. to win
5. breaking
6. asking
7. to go
8. asking