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VI. Gạch chân đáp án đúng.

1. The more popular / **most popular** a tourist site is, the more crowded it becomes.
2. The more plastic people throw away, the **harmful** / more harmful it is to the environment.
3. The more polluted the air gets, the **thicker** / more thick the layer of dust you see in the city.
4. The **gooder** / **better** the healthcare system is, the more people move to big cities.
5. The **earlier** / more early we arrive at the harbor, the greater view we get to see the fireworks.
6. The more **fastly** / **faster** Andy runs, the more / **most** chance he can win the race.
7. The more **unhealthy** / **unhealthier** the food we eat, the **worse** / **worst** our health becomes.
8. The **loudly** / more loudly the audience cheered for the singer, the more **energetically** he performed.
9. The more **advanced** / advancer the public transport system is, the more **conveniently** it is to travel around.
10. The **closer** / more close you are to the construction site, the more **noisy** / **noisier** it is all day long.