[A] unhappiness        [B] heartiness      [C] harshness        [D] uprightness

54. She packed her bags, then called the airport and made a(n) _____ on the last flight out of Los Angeles.

[A] conservation        [B] reservation      [C] preservation     [D]observation

55. If you are a public figure you can`t afford to be too _____ to criticism.

[A] sensible        [B] sensitive        [C] rational         [D] reasonable

56. His spending on pleasure and luxuries is rather high in _____ to his income.

[A] comparison      [B] calculation       [C] association      [D] proportion

57. I had difficulty in _____ myself from telling her what I thought of her.

[A] restraining        [B] retaining          [C] reserving     [D] restricting

58. The book gives a brief ____ of the course of his research up till now.

[A] outline       [B] reference       [C] frame       [D] outlook

59. Many species of animals have now _____ from the face of the earth.