11. The more exercises she does, the healthier she gets. 

12. The more polluted the air is, the greater disasters are.

13. The farther we went, the more tired we felt.

14. The poorer the soil was, the harder the farmers tried.

15. The worse the bread is, the cheaper it is.

16. The older Peter is, the cleverer he is.

17. The more difficult the lesson is, the harder we tried.

18. The more he talked, the more we disliked him.

19. The more you eat vegetable, the healthier you will feel.

20. The more of roads the workers built, the more of equipment they needed.

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NOTE: So sánh kép:

$1.$ Lũy tiến: càng ngày càng..

Short Adj/ Adv

Công thức: S + be/V + adj/adv -er and adj/adv -er

Ex: The climate is getting hotter and hotter.

Long Adj/ Adv

Công thức: S + be/V + more and more + adj/ adv.

Ex: The environment is more and more polluted.

$2.$ Đồng tiến: càng... càng...

Short Adj/ Adv

Công thức: The adj/ adv -er + S$_{1}$ + V$_{1}$, the more adj/adv -er + S$_{2}$ + $_{2}$.

Ex: The older he is, the weaker he becomes.

Long Adj/ Adv

Công thức: The more adj/ adv + S$_{1}$ + V$_{1}$, the more adj/adv + S$_{2}$ + $_{2}$.

$4.$ Càng càng với động từ:

Công thức: The more + S$_{1}$ + V$_{1}$, the more + S$_{2}$ + $_{2}$.