79. Susan is on a special d ___________ to lose weight.

78. He failed in the __________(履行) of his duty.

77. This book __________ (包含) all the information you need.

　　　　　 根据题中所给的汉语或首字母写出符合句意的单词的正确形式。

76. Their opinions will not a __________ my decision.

40. More natural resources should be made use of __________ the increasing need of energy.

　 A. meeting　　　 B. meet　　　　　 C. to meet　　 　　　D. having met