Thay đổi chủ động thành thụ động

II. Thay đổi chủ động thành thụ động.
  11. Alice didn't make that cake.
$\Rightarrow$That cake ..........................
  12. They buy newspapers everywhere in the city.
$\Rightarrow$Newspapers .............................
  13. That company will pubilsh a textbook next year.
$\Rightarrow$A textbook ....................................
  14.  She delivers milk at about six o'clock.
$\Rightarrow$Milk .......................................
  15. Somebody cleans the room everyday.
$\Rightarrow$The room ..................................
  16. A man asked me several difficult questions at the interview.
$\Rightarrow$I .................................................
  17. They will probably send him beek to Britain. 
$\Rightarrow$He ..............................................
  18. Now people find this kind of bird in only  a few remote places in Scotland.
$\Rightarrow$This kind of bird ........................................
  19. They grow rice in the north. 
$\Rightarrow$Rice ...............................
  20. We don't  raise cows on our farm .
$\Rightarrow$Cows ................................