| BOOK CAMBRIDGE IELTS 4 ANSWER KEY | |
| ACADEMIC READING TEST 1 (ONE) PASSAGE 2 (TWO) | |
| 15 | taste buds |
| 16 | baleen/ the baleen whales |
| 17 | IN EITHER ORDER, BOTH REQIRED FOR ONE MARK |
| Forward | |
| downward | |
| 18 | freshwater dolphin(s)/ the freshwater dolphin(s) |
| 19 | water/ the water |
| 20 | lower frequencies/ the lower frequencies |
| 21 | IN EITHER ORDER, BOTH REQUIRED FOR ONE MARK |
| bowhead | |
| humpback | |
| 22 | touch/ sense of touch |
| 23 | freshwater dolphin(s)/ the freshwater dolphin(s) |
| 24 | airborne flying fish |
| 25 | clear water(s)/ clear open water(s) |
| 26 | acoustic sense/ the acoustic sense |