I. Change these sentences into the passive voice: 1. Miss Hien Trang teaches history.  History ____________________________________________. 2. John will deliver the letter.  The letter __________________________________________. 3. Bell invented the telephone.  The telephone ______________________________________. 4. My brother took the photo.  The photo _________________________________________. 5. They will open the new hospital.  The new hospital ___________________________________. 6. Mr Brown wrote the report yesterday  The report ________________________________________. 7. They clean the streets every day.  The streets _______________________________________. 8. We paint our house every four years.  Our house ______________________________________. 9. They dry the glass pieces completely.  The glass pieces _________________________________. 10. They will plant trees and flowers in the school garden.  Trees and flowers ________________________________. II. Write sentences with it and an adjective followed by to infinitive 1. Buy a Complex computer. It isn't expensive  It isn't expensive to buy a Complex computer. 2. Using the computer is simple  It is _________________________________. 3. Learning Spanish is difficult.  It’s __________________________________. 4. Keeping the environment clean is important.  It is __________________________________. 5. Getting a good job is difficult.  It is ____________________________________. III. Combine each pair of the sentences, using the adjective + noun clause 1. I can't go to Vung Tau with you. I'm sorry.  I’m sorry that I can’t go to Vung Tau with you. 2. I was very happy. I got good grades this semester. à I was very happy that_________________________. 3. He knows the answer. He is delighted. à He is delighted that_________________________. 4. We saw you in town. We were surprised. à We were surprised that_________________________. 5. They passed the entrance examination. They were very happy. à They were very happy that_________________________. 6. You didn't pass the English exam. Your parents were very disappointed. à Yourr parents were very disappointed that_________________________. MN ƠI GIÚP MK VS AK... MK ĐANG CẦN GẤP :)