根据下列句子及所给汉语注释，在答题卡相应的位置上写出空缺处各单词的正确形式（每空只写一词）

71. His ___________（申请）to the company for manager has been refused.

72. As I ran up the stairs, my foot _________(滑到) and I fell.

73. Shanghai is the ___________(商业) heart of the country.

74. The main __________(反对) to the plan was that it would cost too much.

75. Don't always ___________(假定) the worst, something can be good.

76. At what age are children able to ___________(辨别) between right and wrong?

77. The ___________(生产) of cars still can’t meet the demand of the market.

78. The books in the library are __________(分类) according to subject.      

79. He is smaller than you, but he is ________(优秀的) to you.

80. The coach tried to ___________(分析) the cause of our defeat.