84.　 This is a well _______________(组织)activity．

83.　 I was deeply ____________ (印象) with the travel to the Shanghai Expo.

82.　 The woman is ________________ (热心的) about helping the poor.

根据汉语提示用单词的正确形式补充句子。

81.　 Modern _______________(技术) is used to help solve energy problems.