1. The teacher corrects our exercises at home.
2. Ali’s absence worried his mother.
3. They are building several new schools in our town.
4. We have made great progress in industry, science and medicine.
5. Sam killed a lion last week.
6. You must hand in your report before the end of this month.
7. No one has opened that box for the past hundred years.
8. Are you going to mail these letters soon?
9. He should have finished the report yesterday.
10. What questions did the examiner set?
11. Somebody must do something for these poor men.
12. Nobody has answered my question properly.
13. Somebody has brought this child up badly.
14. Teachers should make lessons more interesting for school children.
15. One cannot eat an orange if nobody has peeled it.
Đề bài chắc là chuyển thành câu bị động
1. The teacher corrects our exercises at home.
=> Our exercises at home are corected by the teacher
2. Ali’s absence worried his mother.
=> Ali's mother was worried by his absence
3. They are building several new schools in our town.
=> New schools are being built several in our town
4. We have made great progress in industry, science and medicine.
=> Great progress in industry, science and medicine have been made
5. Sam killed a lion last week.
=> A lion was killed by Sam last week
6. You must hand in your report before the end of this month.
=> Your report must be handed in before the end of this month
7. No one has opened that box for the past hundred years.
=> That box hasn't been opened for the past hundred years
8. Are you going to mail these letters soon?
=> Are these letters going to be mailed soon?
9. He should have finished the report yesterday.
=> The report should have been finished yesterday
10. What questions did the examiner set?
=> What question was set by examiner?
11. Somebody must do something for these poor men.
=> Something must be done for these poor men
12. Nobody has answered my question properly.
=> My question hasn't been answered properly
13. Somebody has brought this child up badly.
=> This child has been brought up badly
14. Teachers should make lessons more interesting for school children.
=> Lessons should be made more interesting for school children by teachers
15. One cannot eat an orange if nobody has peeled it.
=> An orange can't be eaten if it hasn't beeb peeled