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2 năm trước
Error Identification: 18. Perhaps mankind’s( first) important (music) influence (was) the songs of (birds). A B C D 19. I (often) turn (off) the (heating) for (saving) money. A B C D 20. I’d like (to have taken) a holiday, (but) I (didn’t have) (too much) money. A B C D
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Read the passage and mark the letter A, B, C, or D to indicate the correct answer to each of the blank. Dolphins are known as cesareans or marine (1) _____ the breathe air, they are warm-blood, and they bear live young ones called (2) _____ . The size of dolphins is very greatly. The smallest dolphins are just about 50 kg in weight and 1.2 meters in length while the largest one can weigh up to 8.200 kg and is 10 meters long. Dolphins are sociable creatures. They win together in group known as schools. They show great ability in the water and you can often come across them playing around ships. Dolphins are interested in humans and often rescue people in the sea (3) _____ are in danger. They are intelligent creatures and make sounds to (4) _____ with each other. Scientists have studied dolphins for many years and are now looking into the possibility of dolphins being able to carry out tasks under the sea. 1. A. fish B. creatures C. mammals D. life 2. A. babies B. calves C. young D. diets 3. A. which B. they C. when D. who 4. A. talk B. contact C. communicate D. connect

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