2. harder than
3. colder than
4. older than
5. a little more difficult than
6. more crowded than
7. bigger bag than
8. more expensive than
9. more than
10. better ... than
2. harder than
3. colder than
4. older than
5. a little more difficult than
6. more crowded than
7. bigger bag than
8. more expensive than
9. more than
10. better ... than