44. Why is it better for people to live in space stations than in the communities on the Moon or Mars?
(A) Space stations can contain more people.
(B) The Moon and Mars are too close to the sun.
(C) Space stations are better able to use the sun’s energy.
(D) The Moon and Mars are too small for human communities.

40. (A) some (B) them (C) it (D) none

41. What is the main idea of the first paragraph? (A) The need of living in outer space.(B) The results of improving human relations.(C) The importance of building space shuttles.(D) The benefits of finding new energy sources.

42. Why do scientists suggest that people should move into outer space? (A) It can be exciting to live in outer space.(B) There will not be enough land on Earth.(C) It is not easy to manage human resources.(D) There are space stations available on Mars.

43. Which of the following is NOT the problem people would have when living on the Moon or Mars?(A) Communication (B) Distance (C) Darkness (D) Construction

45. Which statement would the writer of the passage most likely agree with? (A) Everyone will live on a space station in the future.(B) In the future, space communities will not be needed.(C) Mars is a better place for a space community than the Moon.(D) A space station is a better place for a space community than Mars.

46. What is the passage mainly about? (A) To give a recipe for chocolate bars.(B) To give a brief history of chocolate.(C) To describe the discovery of cocoa beans.(D) To describe the production of cocoa powder.ˉ

47. Which of the following inferences can be drawn from the second paragraph? (A) The milk chocolate was produced in large amounts in 1875.(B) Peter and Nestle failed to find a way to make milk chocolate.(C) The milk chocolate made by Peter and Nestle was expensive.(D) Peter and Nestle did not spend much time making milk chocolate.ˉ

48. Why didn't most Americans get to eat milk chocolate before the early 1900s? (A) Chocolate was very expensive.(B) People enjoyed chocolate in a drink.(C) People preferred to buy cocoa powder.(D) Chocolate was not available at that time.ˉ

49. What is the definition of “mass produce” in the final paragraph? (A) To use fewer workers to finish a task.(B) To complete doing something quickly.(C) To grow something in a variety of places.(D) To produce large quantities of something.ˉ

50. According to the passage, which of the following statements is true? (A) Chocolate bars were available in 1000 BC.(B) Milk chocolate was not made until 1875.(C) People began to drink chocolate after the late 1900s.(D) Most Americans enjoyed chocolate before the early 1900s.