bai tap cau bi dong, cau dieu kien

I. CHANGE THE SENTENCES INTO PASSIVE VOICE
1. The manager always welcomes new employees
2. Janet’s colleagues gave her a present when she was tired
3. Thomas Edison invented the photography in 1877
4. Stephen Court has just invented an armchair which can play music
5. Where will your company send you next year?
6. Had a special messenger delivered the package before you got to the office?
7. The students usually hold the concerts at the University
8. The police found two children in the forest
9. The scientists are studying the problem carefully
10. Someone introduced me to Dr Felix last year
11. Have they shown you what to do?
12. They will finish the hotel next week
13. Nobody told me that George was ill
14. They will tell him that news
15. They say that John is the brightest student in class
16.People believed that the earth stood still
17. They paid me a lot of money to do the job
18. How can they open this window?
19. What time can the boy hand in their papers?
20. Why didn’t they help him?
II. REWRITE THE SENTENCES
1. I don’t know enough about the the machine, so I can’t mend it myself
→If………………………………………………………………………………………………………………
2. I don’t drive to work every morning because the streets are always crowded
→If………………………………………………………………………………………………………………
3. The wind is blowing hard, so I won’t take the boat out for a ride
→If………………………………………………………………………………………………………………
4. Nick can’t find the way because he hasn’t got a map
→If………………………………………………………………………………………………………………
5. I can’t look the word up because I haven’t got a dictionary

→If………………………………………………………………………………………………………………
6. We don’t visit our friends very often because they live so far away
→If………………………………………………………………………………………………………………
7. John missed the ferry because his car broke down
→If………………………………………………………………………………………………………………
8. The Fire Service arrived quickly, so the house didn’t burn down completely
→If………………………………………………………………………………………………………………
9. Mary cause the fire because she didn’t cover the pan
→If………………………………………………………………………………………………………………
10. I arrived late , so I didn’t meet Tom
→If………………………………………………………………………………………………………………
11. They didn’t pass the exam because they didn’t study hard
→If………………………………………………………………………………………………………………
I. CHANGE THE SENTENCES INTO PASSIVE VOICE
1. The manager always welcomes new employees
2. Janet’s colleagues gave her a present when she was tired
3. Thomas Edison invented the photography in 1877
4. Stephen Court has just invented an armchair which can play music
5. Where will your company send you next year?
6. Had a special messenger delivered the package before you got to the office?
7. The students usually hold the concerts at the University
8. The police found two children in the forest
9. The scientists are studying the problem carefully
10. Someone introduced me to Dr Felix last year
11. Have they shown you what to do?
12. They will finish the hotel next week
13. Nobody told me that George was ill
14. They will tell him that news
15. They say that John is the brightest student in class
16.People believed that the earth stood still

17. They paid me a lot of money to do the job
18. How can they open this window?
19. What time can the boy hand in their papers?
20. Why didn’t they help him?
II. REWRITE THE SENTENCES
1. I don’t know enough about the the machine, so I can’t mend it myself
→If………………………………………………………………………………………………………………
2. I don’t drive to work every morning because the streets are always crowded
→If………………………………………………………………………………………………………………
3. The wind is blowing hard, so I won’t take the boat out for a ride
→If………………………………………………………………………………………………………………
4. Nick can’t find the way because he hasn’t got a map
→If………………………………………………………………………………………………………………
5. I can’t look the word up because I haven’t got a dictionary
→If………………………………………………………………………………………………………………
6. We don’t visit our friends very often because they live so far away
→If………………………………………………………………………………………………………………
7. John missed the ferry because his car broke down
→If………………………………………………………………………………………………………………
8. The Fire Service arrived quickly, so the house didn’t burn down completely
→If………………………………………………………………………………………………………………
9. Mary cause the fire because she didn’t cover the pan
→If………………………………………………………………………………………………………………
10. I arrived late , so I didn’t meet Tom
→If………………………………………………………………………………………………………………
11. They didn’t pass the exam because they didn’t study hard
→If………………………………………………………………………………………………………………