1. I am very busy, so I have no time to go with you.

  ⇒ I am so busy that I have no time to go with you.

2. To sing songs together is happy.

  ⇒ It is happy to sing songs together.

3. We spent three hours repainting his car.

  ⇒ It took us three hours to repaint his car.

4. They felt happy with the news.

  ⇒ The news made them happy.

5. No one could build the cottage because it rained heavily.

  ⇒ Because of the heavy rain, no one could build the cottage.

6. Mary went shopping because she wanted to buy some jeans.

  ⇒ Mary went shopping in order to buy some jeans.

7. He is not good at writing essays. 

  ⇒ He doesn’t write essays well.

8. He tried to be honest, but no one believed him any more.

  ⇒ Although he tried to be honest, no one believed him anymore.

9. Sitting in the same place so long is uncomfortable.

  ⇒ It is uncomfortable to sit in the same place so long.

10. This tea is very hot and he can't drink it.

  ⇒ This tea is too hot for him to drink.

11. In spite of being poor, we are always honest.

  ⇒ Although we are poor, we are always honest.

12. My brother plays tennis very well.

  ⇒ My brother is good at playing tennis.

13. She was sleeping and the fire started.

  ⇒ While she was sleeping, the fire started.

14. To make friends in a new school is not easy.

  ⇒ It is not easy to make friends in a new school.

15. I've never eaten with knives and forks before.

  ⇒ It is the first time I have ever eaten with knives and forks.

16. No one in the group is younger than her.

  ⇒ She is the youngest in the group.

17. It took me two hours to fix the computer.

  ⇒ I spent 2 hours fixing the computer.

18. How much is this T-shirt?

  ⇒What is the price of this T-shirt?

19. Hanoi has a lot of old buildings.

  ⇒ There are a lot of old buildings in Hanoi.

20. My sister is a good cook.

  ⇒ My sister cooks very well.

21. It was such bad weather that we couldn’t go out.

  ⇒ The weather was so bad that we couldn’t go out.

22. I spend one hour telling stories to my daughter every night.

  ⇒ It takes me one hour to tell stories to my daughter every night.

23. Mary doesn't like to read romantic novels.

  ⇒ Mary isn’t interested in romantic novels.

24. That girl is very intelligent.

  ⇒What an intelligent girl!

25. They are good teachers at maths.

  ⇒ They teach Maths very well.

       Chúc bạn học chăm chỉ nhé !