16 The more he thought about his family, the more he became homesick

17 The more the food is expensive, the more people buy little 

18 The more his son grows up, the more he becomes intelligent.

19 The more the athlete trains hard, the more they break many past reacords.

20 The more we plant many trees,the more we  preserve our oil

21 The more it rains heavily,the more the water level rose high.

22 The more you work hard, the more you will earn a lot of money.

23 The more he does morning exercises regulary, the more he gets healthy.

24 The more he thought about his family, the more he became homesick

25 The more we destroy many trees, the more our environment will be polluted. 

Cấu trúc :

The more + S + V + adj/adv so sánh + S + V (Càng ... càng)

$\text{Cấu trúc so sánh kép:}$

$\text{SS của danh từ: The more+ N+ S+ V, the more+ N+ S+ V.}$

$\text{SS của động từ: The more+ S+ V, the more+ S+ V.}$