Dưới đây là dạng đúng của các từ trong ngoặc để hoàn thiện câu:

5. The red shirt is better but it’s **more expensive** than the white one.
6. I’ll try to finish the job **more quickly**.
7. Being a firefighter is **more dangerous** than being a builder.
8. Lan sings **more sweetly** than Hoa.
9. I want a **cheaper** T-shirt.
10. He runs **faster** than his father.
11. You need to be **more careful** when driving.
12. Which planet is **closer** to the Sun than the Earth?
13. Carol is **more beautiful** than Mary.
14. The weather this summer is even **hotter** than last summer.
15. Your accent is **worse** than mine.
16. Hot dogs are **better** than hamburgers.
17. They live in a **bigger** house, but Fred lives in a **big** one.
18. French is considered to be **more difficult** than English for **non-native** speakers.
19. It’s the **largest** company in the country.