EX2: Chuyển những câu sau sang câu bị động
1. Doctor Zhang Jixian found Corona viruses in Wuhan in 2019.
→ Corona viruses……………………………………………………………………………………
2. Dr. Martin Cooper invented the first mobile phone in 1973. 
→ The first mobile …………………………………………………………………….
3. The law of supply and demand should govern the prices of goods
->The prices……………………………………………………………………
4. Khac Hung musician composed “Ghen co vy” song three months ago.
->“Ghen co vy” song…………… …………………………
5. My mom watched these films last week
->These films..............................................................................................
6. They will hold the meeting before MayDay.
- The meeting...........................................................................................
7. My teacher made us study hard for our  exam.
-> We were  ……….....……………………………………………………………………………………..
8. France presented the Statue of Liberty to the USA in 1876.
-> The Statue of Liberty ………………………………………
9. We will plant more trees along this street.
-> More trees ……………………………………
10. Huong Tram performs the song “Em gai mua ” very beautifully.
-> The song “Em gai mua”……………………………
11. They didn’t invite Nam and Minh to the party.
→ Nam and Minh ………………………………
12. They built a big villa near my house.
-> A big villa..................................................................
13. My sister gave me a new pair of jeans on my sixteenth birthday.
-> I..................................................................................................................................
14. My father planted that tree in the garden last spring.
-> That tree was ……………………………………
15. France presented the Statue of Liberty to the USA in 1876.
à The Statue of Liberty ………………………………………………………………….
16. My mother bought this book two years ago.
à This book …………………………………
17. His parents will send him abroad.
—› He will ……………………………………………………………………………….
18. All the students have to take the final exam.
→The final exam……………………………………………………
19. They have already finished the homework.
→The homework ……………………………………………………………………………..
20. They are going to build a swimming pool in this area next month.
→A swimming ……………………………………
21. They built this factory two years ago.
This factory ...............................................................
22. "I don’t buy this book.”, my brother said.
 My brother said ……….. ……….. ……….. 
23. All the students have to take the final exam.
→The final exam……………………………………………………………………
24. People will have to repair  all the doors of the old house tomorrow.
All the doors.........................................................................................
25. The fire destroyed almost all the houses in the neighbourhood.
Almost all the houses …………………………………………………………………………………..