4. Fish and meat are the same price in some countries.
7. This journey didn't last as long as I thought.
8. The more we travel, the more we love our country.
9. The later we started, the more traffic jam we got into. (câu này vế trước dùng QKĐ, vế sau lại dùng HTĐ, nên mình dùng QKĐ hết nhé)
11. The lessons are not the same level. (câu này làm đại thôi)
12. The weather is colder and colder.
15. giống câu 13.