Chuyển sang câu bị động
19. By next year the students will have completed their study. → ________________________________________________________________________
20. James might cook the dinner. → ________________________________________________________________________
21. Some students study grammar on the Internet. → ________________________________________________________________________
22. No one painted the building last year. → ________________________________________________________________________
23. Alexander Fleming discovered penicillin in 1928. → ________________________________________________________________________
24. John’s mother had raised him in a small town. → ________________________________________________________________________
25. The police are protecting the town. → ________________________________________________________________________
26. I cannot fix the problems. → ________________________________________________________________________
27. Many people bought the tickets for last night’s concert in Paris. → ________________________________________________________________________
28. Scientists have discovered new species of frog. → ________________________________________________________________________
19. By next year the students will have completed their study. → __By next year, their study will have been completed by the students______________________________________________________________________
20. James might cook the dinner. → _______The dinner might be cooked by James_________________________________________________________________
21. Some students study grammar on the Internet. → _____Gramma is studied on the Internet by some students___________________________________________________________________
22. No one painted the building last year. → ___The building wasn't painted last year_____________________________________________________________________
23. Alexander Fleming discovered penicillin in 1928. → ___Penicillin was discovered by Alexander Fleming in 1928 _____________________________________________________________________
24. John’s mother had raised him in a small town. → __John had been raised in a small town by John's mother______________________________________________________________________
25. The police are protecting the town. → ___The town is being protected by the police_____________________________________________________________________
26. I cannot fix the problems. → ___The problems can't be fixed_____________________________________________________________________
27. Many people bought the tickets for last night’s concert in Paris. → ____The tickets for last night’s concert in Paris were bought ____________________________________________________________________
28. Scientists have discovered new species of frog. → _____New species of frog have been discovered by scientists________________________________________________________