Chuyển câu sang câu bị động

     
----- Nội dung dịch tự động từ ảnh -----
EX 3: chuyển câu sang câu bị động
12. They have provided the victims with food and clothing.
13. People speak English in almost every corner of the world.
14. You must use this machine after 5.30 p.m.
15. You must clean the wall before you paint it.
16. They told the new pupils where to sit.
17. We must take good care of these books.
18. They use milk for making butter and cheese.
->
19. Smoke filled the room.
→
20. The teacher gave each of us two exercise books.
->