Chủ động sang bị động:

3/ The floor is cleaned twice a day 

4/ A chocolate cake is eaten by us

5/ This house is sold

6/A letter is written by William

7/ The dishes are washed  by her everyday

8/ This song is sung 

9/ The floor is swept

10/ My dog is taken by me

Bị động sang chủ động:

1/ My mother buys this book

2/Mr. Sam manages the export division

3/They speak english

4/Nina rides the bike every evening

5/ They study information techonology everyday

6/My best friend buys an  english book

7/Sam sells the dog

8/ They decorate my room

9/They wash the car

10/ They clean the car

Chúc bạn học tốt nha !

2. I am called every day

3. The floor is cleaned twice a day

4. A chocolate cake is eaten

5. This house is sold

6. A letter is written by William

7. The dishes are washed every day by her

8. This song is sung

9. The floor is swept

10. My dog is taken care of by me

1. My mother buys this book

2. Mr.Sam manages the export division

3. They speak English

4. Nina rides a bike every evening

5. They study information technology every day

6. My best friend buys an English book

7. Sam sells the dog

8. I decorate my room

9. Someone washes my car

10. They clean my house