77．There is no easy _______________ (治愈) for loneliness．

第一节 单词拼写

　　　 根据所给句子及横线后的汉语意思写出正确形式的单词。(共5小题；每小题1分，满分5分)

76．Every day the chimneys of factories pour a great deal of smoke, _______________ (污染) the environment little by little．

35．If the students who killed themselves had only been more confident, their deaths ________．

　　　 A．need have been avoided　　　　　　　　　　　　 B．must have been avoided

　　　 C．might have been avoided　　　　　　　　　　　 D．will have been avoided