1. Tăng trưởng kinh tế: Các nước này đều đã trải qua một giai đoạn tăng trưởng kinh tế mạnh mẽ, với sự phát triển của các ngành công nghiệp, nông nghiệp và thương mại.

2. Đổi mới công nghệ: Các quốc gia này đều đã đổi mới công nghệ và ứng dụng các công nghệ tiên tiến nhất của thời đại đó như máy móc, đường sắt, tàu hỏa, ô tô...

3. Đổi mới xã hội: Các nước này đã trải qua các thay đổi xã hội đáng kể, với sự phát triển của các phong trào xã hội, các chính sách xã hội và bảo vệ lao động.

4. Tư tưởng cách mạng: Các nước này đã được ảnh hưởng bởi các tư tưởng cách mạng, như chủ nghĩa dân tộc, chủ nghĩa xã hội và chủ nghĩa tự do cá nhân.

The more the economy grows, the better people's living conditions become.

Bài 4:
1. My brothers often sleep on the floor.
2. I always do the housework with my brother.
3. They often do not come to class on time.
4. She usually does not go shopping.
5. Does he sometimes stay up late?
6. Why does Johnson always get good marks?
7. She seldom cries.
8. My father has never had popcorn.
9. She is sometimes fat.
10. They have never been naughty.
Bài 5:
1. She does not sleep late at the weekends.
2. We do not believe the Prime Minister.
3. Do you understand the question?
4. They do not work late on Fridays.
5. Does David want some coffee?
6. She has three daughters.
7. When does she go to her Chinese class?
8. Why do I have to clean up?
9. How often does she go to the cinema?
10. She does not usually go to the church.

9. John, whom I have known for 8 years, is one of my closest friends

8. I'm very interested in astronomy, which is why I have just bought some books about it.

9. John, who I have known for 8 years, is one of my closest friends

10. The new stadium, which holds 90000 people, will be opened next month.

11. The tree which stands near the gate of my house has lovely flowers.

12. The man who you said you met at the canteen last week, I don't remember him.

13. Tom, who is my brother, made a number of suggestions.

14. My brother, who you were speaking to, wants you to come to dinner.

2. He prefers listening to pop music over watching TV after school.

3. It's very interesting to make crafts or collect things like stamps and coins.

4. We enjoy visiting museums in our leisure time.

5. I hate getting up early and preparing breakfast in the cold winter days.

6. Vinh enjoys hanging out with friends very much.

7. It is interesting to play beach games.

8. It is better to avoid spending too much time on computer games.

9. My parents wants me to learn something interesting.

10.Jenny dislikes reading poetry.