mn giải giúp mk nha 
1 vật có thể tích là 80 cm^3 và có trọng lượng là 2,13N. Nếu vật đc treo vào lực kế rồi nhúng chìm 1 vật tư thể tích vật nào trong nước thì lực kế chỉ bao nhiêu ? Biết trong lượng riêng của nước là 10000N/m^3

Exercise 3 : Forms of words ( Chia dạng của từ trong ngoặc )

1. There's lots to see _ a grand opening ceremony , a Dem Phuong Dong or _________ night show ( orient )

2. There is a ________ court music performance . ( royalty)

3. It is your family __________. ( reunit )

4. It is Do Son Buffalo -___________ festival. ( fight )

5. The Giong Festival is held very year to ___________. ( commemoration)

6. Thanks to technology , we can now ____________ our culture for future_____________. ( generate)

7. The Le Mat Snake _________ is about the history of the village . ( ritually)

8. It's a __________ shildhood experience . ( memory )

9. The Hung King's sons offered him many ___________ foods . ( speciality)

10. When the An ___________ came to Viet Nam , the three-year-old child grew up very fast. ( invade)

11. Although the buffalo-fighting Festival sounds frightened , it is an ___________ part of the ceremony to worship the Water God . ( essence )

12. The achilden raise their __________hands to the moon . ( clasp)

13. There are also many____________ activities . ( joy)

14. There is a ceremony of offering incense and __________ such as Chung cakes and Day cakes. ( special)

15. What is included in the ___________ to the Hung King ? ( offer)

16. This festival is ___________ because there are many joyful activities . ( impress)

17. He is considered a ___________ hero . ( myth )

18. They performed a ___________ ceremony . ( religion)

19. This festival show our love for the motherland and the ___________ of our cultural heritage . ( preserve )

20. The elepants are encouraged by the ___________ crowd . ( cheer)

21. There is the Poh Bang performance by a __________ . ( magic )

22. You can enjoy the singing of the most lien anh and lien chi . ( skill )

Exercise 3. Rewite the following sentences.

1. It is important for you to water that tree.                  -> You have …………………………………………

2. It is important for Mary to do her homework.             -> Mary has …………………………………

3. It is important for them  to play sports.                    -> They have ………………………………………

4. I think it is necessary for you to water the trees every day. ->  You must………………………………………………

5. I think it is necessary for Mary  to to do her homework -> Mary must…………………………………………

6. I think it is necessary for them  to play sports.                     ->  They must……………………………………………………

7. I think it is necessary for you to learn English every day. ->  You must…………………………………

8. It is important for you to find that book.              -> You have……………………………………..

9. It isn’t necessary for you to water that tree every day.          You don’t……………………………………………….

10. It is important for you to find the book.                -> You have…………………………………………..

11. You don’t have to bring your raincoat today.                   You shouldn’t………………………………………… 

mọi người ơi giúp mk bài 3 đi cảm ơn mn