| BOOK CAMBRIDGE IELTS 1 ANSWER KEY | |
| GENERAL TRAINING READING PASSAGE 3 | |
| 30 | sustamable//replaceable |
| 31 | biodegradable |
| 32 | virgin fibre/pulp |
| 33 | governments//the government |
| 34 | advances |
| 35 | quality |
| 36 | contaminants |
| 37 | offices |
| 38 | sorted |
| 39 | (re) pulped |
| 40 | de-ink/remove ink/make white |
| 41 | refined |