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01—05 CACBA 06—10 CABCB 11—15 BCABA 16—20 BCACA
21—23 BDA 24—27 ACAB 28—31 DCCA 32—35 DBCD
36—40 DCAFE 41—45 ABCDA 46—50 CBADB 51—55 DBCAC
56—60 DACBD 61. as 62. effects 63. to process 64. are removed
65. a 66. worse 67. is 68. eating 69. careful 70. which
71. eighteen→eighteenth 72. first前加the / my 73. so→but / yet
74. goes→went 75. word→words 76. Turning→Turn 77. 去掉much
78. late→later 79. suddenly→sudden 80. on→of
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