Section 3 questions 21-30 Questions 21 and 22 一个空填写一个选项,比如21&22答案为AB,第一个空填写A, 第二个空填写B。以此类推。 Choose TWO letters, A-E. Which TWO hobbies was Thor Heyerdahl very interested in as a youth? A camping B climbing C collecting D hunting E reading Questions 23 and 24 Choose TWO letters, A-E. Which do the speakers say are the TWO reasons why Heyerdahl went to live on an island? A to examine ancient carvings B to experience an isolated place C to formulate a new theory D to learn survival skills E to study the impact of an extreme environment