Questions 1-8 Choose the correct letter, A,B or C. 1. How long have Sharks lived in the world’s oceans. A. For hundreds of years. B. For thousands of years. C. For millions of years. 2. How many kinds of sharks are there in the world? A. Two hundred fifty. B. Three hundred fifty. C. Four hundred fifty. 3. How long is the dogfish shark? A. Less than twenty centimeters. B. More than twenty centimeters. C. About two meters long. 4. What shark is the biggest one? A. The dogfish shark B. The whale shark. C. The white shark. 5. What is the skeleton of a shark made of? A. Cartilage. B. Bones. C. Muscle. 6. What help sharks find their food? A. Body liquids. B. Magnetic power. C. Powerful senses. 7. How often do most sharks reproduce young sharks? A. Every year. B. Every two years. C. Every three years. 8. What attracts scientists to learn more about the sharks? A. Shark’s nervous system. B. Shark’s body defense system. C. Shark’s digest system. Questions 9-15 Complete the statements below. Write NO MORE THAN THREE WORDS for each answer. 9. Many people believe that shark cartilage can help __________ cancer. 10. Sharks are important for the health of the world’s oceans because they eat ___________ fish. 11. Their hunting activities mean that the numbers of other fish in the ocean do not become __________. 12. Experts say shark are __________ at the time of the day when the sun goes down or comes up. 13. Experts also say that people should not wear __________ of shiny metal jewelry. These may cause sharks to attack. 14. The experts say the number of sharks in the world has __________ in recent years. 15. Scientists say people are killing sharks __________ than the sharks can reproduce.