Câu hỏi:

SECTION III: READING

Read the passage below and choose the best answer to each question.

    The shark is a meat- eating fish and one of the most feared animals of the sea. Scientists (56) _______ about 250 species of fish as sharks. These fish live in oceans (57) _______ the world, but they are most common in warm seas. Sharks (58) _______ greatly in size and habits. Whale sharks, the largest kind of shark, may grow 60 feet long. A whale shark weighs up to 15 tons, more than twice (59) _______ much as an African elephant. The smallest shark may (60) _______ only 4 inches long and weigh less than 1 ounce. Some kinds of sharks live in the depths of the ocean, but (61) _______ are found near the surface. Some species live in coastal waters, but others (62) _______ far out at sea. A few species can even live in (63) _______ water. All sharks are carnivores (meat- eaters). Most of them eat (64) _______ fish, including other sharks. A shark’s only natural enemy is a large shark. Sharks eat their prey whole, or they tear off large chunks of flesh. They also (65) _______ on dead or dying animals.

Scientists (56) _______ about 250 species of fish as sharks.