IS THERE ANYBODY OUT THERE?

      BOOK CAMBRIDGE IELTS 9 ANSWER KEY   ACADEMIC READING TEST 1 (ONE) PASSAGE 2 ANSWERS     14 iv 15 vii 16 I 17 ii 18 several billion years 19 radio (waves/signals) 20 1000 (stars) 21 YES 22 YES 23 NOT GIVEN 24 NO 25 NOT GIVEN 26 NO