71.Destructionoftheenvironmentisoneofthemostserious

问题详情：

71. Destruction of the environment is one of the most serious _______________ (挑战) we face.

72. He works for a company that ________________ (出版) reference books.

73. We hope you can give us a detailed __________________ (描述) of the procedure.

74. He is _______________ (有雄心的) to succeed in life.

75. People can become _____________ (精神上) addicted to nicotine.

76. The boss will fire you if you miss the _____________ (截止日期) for the work.

77. The decision was made in my ____________ (缺席).

78. I ______________ (祝贺) them all on their results yesterday.

79. First we need to identify actual and ______________ (潜在) problems.

80. They drove at an _______________ (平均) speed of 100 miles per hour.

【回答】

71. challenges     72. publishes     73. description       74. ambitious    75. mentally       76. deadline    77.  absence    78.  congratulated        79. potential    80. average  

知识点：其他

题型：单词拼写