answer key of BOOK THE OFFICIAL CAMBRIDGE GUIDE TO IELTS  TEST 2 (TWO) READING PASSAGE 2

  BOOK THE OFFICIAL CAMBRIDGE GUIDE TO IELTS ANSWER KEY  TEST 2 (TWO) READING PASSAGE 2   14 v 15 ii 16 viii 17 vii 18 i 19 iv 20 C 21 B 22 A 23 C 24 On(-)board computer 25 ultrasound signals 26 touch(-)screen     THANKS FOR READING: Dawn of the robots