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Reading Answer Key Academic Module

Cambridge Book 21 Test 3

The published Reading answers for Cambridge IELTS Book 21 Test 3 are now available below.

Questions
40
Sections
3
Last reviewed

Verified Answers

Reading Passage 1

Questions 1–13
  1. 1 dust
  2. 2 blood
  3. 3 coat
  4. 4 horns
  5. 5 habitat
  6. 6 routes
  7. 7 streams
  8. 8 FALSE
  9. 9 FALSE
  10. 10 TRUE
  11. 11 NOT GIVEN
  12. 12 TRUE
  13. 13 NOT GIVEN

Reading Passage 2

Questions 14–26
  1. 14 NOT GIVEN
  2. 15 FALSE
  3. 16 NOT GIVEN
  4. 17 TRUE
  5. 18 FALSE
  6. 19 lanes
  7. 20 boarding
  8. 21 wheelchairs
  9. 22 fuel
  10. 23 flood
  11. 24 smartcards
  12. 25 gates
  13. 26 queues

Reading Passage 3

Questions 27–40
  1. 27 A
  2. 28 A
  3. 29 D
  4. 30 A
  5. 31 E
  6. 32 F
  7. 33 D
  8. 34 B
  9. 35 NO
  10. 36 NOT GIVEN
  11. 37 NOT GIVEN
  12. 38 YES
  13. 39 YES
  14. 40 NO

Question Type Breakdown

This Reading test has 40 questions in total: 17 questions testing True/False/Not Given or Yes/No/Not Given statements, 8 questions using multiple-choice, matching-heading, or matching-information formats, and 15 questions requiring sentence, note, table, or summary completion.

How to Use This Answer Key

This key is most useful after a full, timed attempt rather than a question-by-question check, since IELTS Reading tests pacing as much as comprehension. When reviewing mistakes, check whether time ran out on the later passages before assuming the content itself was the problem.

Last reviewed on August 4, 2026. See our Editorial Policy for how answer keys are checked and corrected. Spotted a mistake? Tell us.