51. productivity
52. production
53. saving
54. consumers
55. consuming
56. consumption
57. efficiency
58. effectively.... satisfied
59. innovation
60. conservationists
61. ultimately
62. celebration
63. joyful
64. colorful
65. feeling
66. eruption
67. scientists
68. disastrous
69. pollutant
70. strength
71. disappearance
72. encourages
73. popularity
74. savings
75. satisfaction
76. unemployment
77. loosen
78. reference
79. addition
80. proud
81. reduction
82. preservation
83. household
84. conservation
85. homeless
86. refusal
87. permission
88. hardships
89. misunderstanding
90. forgetful ... forgetfulness
91. pressure
92. historian ... historic
93. overweight
94. unrepairable
95. mouthful
96. daily
97. Israeli
98. worried... worriedly
99. illogical
100. inexperienced
- Note: Đến những 49 câu chứ đùa :(((
@ngocc_vanw
- Xin 5 sao và ' Câu trả lời hay nhất ' ạ!