72. They keep two _____________(serve): a cook and a gardener.

servants

71. Would you do it again if you had the ___________(choose)?

choice

70. I'd like to see more _______________(science) methods used.

scientific

69. That certainly seems a _________________(satisfy) explanation.

satisfactory

68. He was anxious about the _____________(safe) of the children.

safety

67. Did you see the ______________(conclude) of the movie?

conclusion

66.There are many words that have more than one ________________(pronounce).

pronunciation

65. He's always been frightened of his blood _____________(press).

pressure

64. They didn't see any ________________(possible) of improvement.

possibility

63. He left his own country for _____________(politics) reasons.

political