43. According to the passage, which of the following is NOT a sign of animals’ intelligence?
(A) They know how to use tools.
(B) They have the ability to build nests.
(C) They make a plan to solve their problem.
(D) They use human language to communicate.

39. (A) above (B) of (C) on (D) by

40. (A) for (B) but (C) otherwise (D) while

41. What is the passage mainly about? (A) To introduce animals’ different ways of finding food. (B) To compare the levels of intelligence among animals. (C) To illustrate how different animals can be intelligent. (D) To examine animals’ communication between each other.

42. What does the word reward refer to in the first paragraph? (A) Fruit. (B) Insight. (C) Pyramid. (D) Understanding.

44. In the second paragraph, what conclusion can be reached about the chimpanzee’s ability to use a tool? (A) It shows high intelligence because he can communicate with termites. (B) It shows common sense because he knows termites are protein-packed. (C) It shows common sense because he looks for food whenever he is hungry. (D) It shows high intelligence because he is able to get the food he likes.

45. Which of the following inferences can be drawn from the third paragraph? (A) Parrots can be taught to use sign language to communicate with deaf people. (B) Some chimpanzees have been trained to use symbols that stand for human words. (C) Like parrots, some chimpanzees have no problem in repeating what people say. (D) No real thinking is involved when parrots communicate through human language.

46. What is the main idea of this passage? (A) It is about using chewing gum to create artwork. (B) It is about following the steps of chewing gum. (C) It is about the side effects of chewing gum. (D) It is about the causes for people to chew gum.

47. Which of the following statements is NOT true about Ben Wilson? (A) He comes from the United Kingdom. (B) He painted a large number of paintings on old gum. (C) He encourages people to visit art galleries to enjoy artwork. (D) He was arrested by the police for painting on the gum littered.

48. According to the passage, why do people chew gum? (A) To get to sleep easily. (B) To eat less junk food. (C) To attract the opposite sex. (D) To sell old gum as canvases.

49. How does Ben Wilson come up with what he paints on the gum? (A) He listens to his friends’ advice. (B) He enjoys visiting the art gallery. (C) He travels to Paris for inspirations. (D) He talks with strangers on the street.