写出下列词的比较级与最高级。
1. big _______ _______
2. bad _______ _______
3. cheap _______ _______
4. little _______ _______
5. good _______ _______
6. far _______ _______
7. friendly _______ _______
8. comfortable _______ _______
9. outgoing _______ _______
10. interesting _______ _______