12. When his mother was in the hospital producing his sister, he was very excited( )anticipation of having a cute baby sister.

65Which of the following is true about an enthusiastic person?

64The phrase “let up”(Line 4, Paragraph 2) probably means

63 When others cast doubts on her work,a person like Barbara McClintock would
probably

62 Which of the following titles best suits the passage?

61 What does the word“grudge”(Line 8,Paragraph 4) probably mean?

60 What happens when one takes his work as pleasure?

59What should a manual laborer do if he wants to be really happy and safe?

58 It is important to start hobbies early because

57 Which of the following best states the author's purpose of writing?

21st-century traveler