=>

2. The more money and time Tung spends with his girlfriend, the happier he becomes.

3. The more talented the joke is, the louder the laughter is.

4. The late she goes to bed, the more tired she feels.

5. The older her father gets, the less he wants to travel.

6. The busier this road gets, the more dangerous it becomes.

7. The younger they are, the more easily they learn.

8. The cheaper the hotel is, the worse the services are.

9. The more electricity he uses, the higher his bill will be.

10. The more modern the technology is, the worse the world's environment becomes.

2. Trung spends much money and time with his girlfriend, he becomes happy.

⇒ The more money and time Tung spends with his girlfriend,the happier he becomes.

3. The joke is talented. The laughter is loud.

⇒ The more talented the joke is,the louder the laughter is.

4. She goes to bed late. She feels tired.

⇒ The late she goes to bed,the more tired she feels.
5. As her father gets older, he wants to travel less.

⇒ The older her father gets,the less he wants to travel.
6. As this road gets busy, it becomes dangerous.

⇒ The busier this road gets,the more dangeros it becomes.
7. They are young, they learn easy.

⇒ The younger they are,the more easily they learn.
8. The hotel is cheap, the services are bad.

⇒ The cheaper the hotel is,the worse the services are.
9. He uses much electricity, his bill will be high.

⇒ The more electricity he uses,the higher his bill will be.
10. When technology is modern, the world's environment becomes worse and worse.

⇒ The more modern the technology is,the worse the world's environment becomes.

=> Giải thích: Áp dụng cấu trúc của so sánh kép như dưới:

The + short adj/adv+er + S + V,the + short adj/ adv+er + S + V
The + short adj/adv+er + S + V,the more + long adj/adv + S + V

The more + long adj/ adv+ S + V,the more + long adj/adv + S + V
the more + long adj/adv+ S + V,the + short adj/adv+er + S + V