Question 17: What is the best title for the passage?
(A) Penguins and the Ocean Mysteries(B) Penguins' Fun Adventures(C) Penguins: Life in the Cold(D) The Hidden History of Penguins
53. Question 18: What is true about penguins' communication?
(A) Penguins use different sounds to recognize each other in large groups.(B) Penguins never use body movements to find their mates or chicks.(C) Penguins communicate only to protect their homes from predators.(D) The King penguins create the sound for their chicks to copy.
54. Question 19: Why does the author mention penguins' swimming skills?
(A) To highlight how penguins survive in cold temperatures(B) To show how penguins escape from predators(C) To describe how penguins interact with each other underwater(D) To explain how penguins hunt for food
55. Question 20: In paragraph 2, the word “unique” is closest in meaning to -------.
(A) common(B) remarkable(C) uneasy(D) anxious