21. What should you pay extra money for during the trip? A. Minibus tour. B.Glacier hiking C. Entrance fees. D.Lunch. 22. you want to have a boat trip, you_ A.can make it all year around B.don't need to pay extra money.must buy waterproof jacket and pants D.had better book the tickets in advance 23. Where does this text most probably come from?3高三试卷答案 A.A health newspaper. B. A science fiction. C.A travel website. D.A project handbook.R