Ai giúp em với B.Change these sentences into the passive voice : s vm v o 1. We/ can use /the garbage /to make fertilizer Note: (các câu còn lại xác định như vậy cho dễ làm nhé)  The garbage can be used to make fertilizer . 2.They give many courses in English during the summer.  …………………………………………………................... 3.We should use cloth bags instead of plastic bags .  …………………………………………………………….. 4. She must empty the kitchen garbage. …………………………………………….......................... 5. He breaks the glass into small pieces. …………………………………………………................... 6. Mr Tan repaired the electric fan.  …………………………………………………………… 7. Santa claus gave children presents on Christmas Eve  ………………………………………………….. 8. They performed Christmas songs for people in town  …………………………………………........................... 9.The boss has treated them badly.  ........................................................................................... 10.No one has opened that box for the last hundred years. ............................................................................................... C.Transformation : 1.Keeping the environment clean is very important. →It's ………………………............................................................ 2. They will show the time machine to the public when they finish →The time machine ......................................................................... 3. He was delighted to receive his aunt’s letter. → He was ........................................................................................ 4. I'm very sad that I wasn't accepted in that group →I'm ............................................................................................... 5. We can use the garbage to make fertilizer. → The garbage ………………………………………………...... 6. We should reuse plastic bags. → Plastic bags ……………………………………………………… 7. People speak English all over the world. → English ………………………………………............................. 8. We should use cloth bags instead of plastic bags. → Cloth bags ................................................................................... 9. Bell invented the telephone in 1876. → The telephone ……………………………………………............. 10.He uses milk for making butter and cheese.  Milk ……………………………………… 11.He will win the game. I’m sure.  I’m …………………………………………… 12.Working in dirty and polluted conditions is impossible.  It is ………………………................................... 13..I will repair your bicycle tomorrow afternoon.  Your bicycle .......................................................... 14.Penicillin can cure many dangerous diseases.  Many ………………………................................. 15.They took the injured boy to the nearly hospital. C The injured boy ............................................................ 16.My grandfather planted this tree.  This tree …………………………………….................... 17. I study hard so that I can pass the exam  I study hard so as ………………………………………..................... 18. I always keep the window open so as to get some fresh air  I always keep the window open so that ……………………................... 19. They will build a new bridge next year . A new bridge ………………………………………………...................... 20.Somebody cleans the room every day.  The room ………………………………………………………………….. 21. I want to let the fresh air in. I always keep the window open.  In oder ......................................................................................................... 22. I took off my shoes. I didn’t want to make any noise.  I took off my shoes so as................................................................................