题目

    71. The book he recommends is greatly __________(有益处).     72. She is quite ______(敏感的)to what others think of her.     73. Your early reply would(感激).     74.(决心)to give up smoking, he threw the remaining half packet of cigarette into the dustbin.     75.(讨价还价)with life is not the way to live life.     76. The achievement has reached(先进的)world standard.     77. No one can come up with a convincing________(解释)of why dinosaurs died out.     78. The product ________(广告)over twenty times so far this week.     79. Other(环境)friendly toilets concentrate on using low water levels, or recycled water.     80. His speech on________(失业)was well received. 答案：71. beneficial     72. Sensitive      73. be appreciated   74. Determined 75.Bargaining      76. advanced       77.  explanation     78. has been advertised 79. environmentally  80. unemployment

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