61. a. derived b. transferred c. recovered d. mined 62. a. which b. that c. it d. what 63. a. through b. off c. over d. out 64. a. resource b. energy c. supply d. full 65. a. for b. with c. despite d. of 66. a. search b. charge c. favor d. place 67. a. is b. as c. a d. being 68. a. and b. still c. yet d. much 69. a. accessible b. available c. adoptable d. usable 70. a. and b. that c. for d. though 71. a. on b. in c. by d. of 72. a. and b. as c. or d. so 73. a. size b. measure c. amount d. quantity 74. a. laying b. lay c. lying d. lain 75. a. already b. ready c. well d. just 76. a. In b. For c. From d. With 77. a. had b. brought c. seized d. wanted 78. a. retard b. give c. delay d. postpone 79. a. in b. to c. by d. for 80. a. search b. starve c. freeze d. worry
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