题目

英语句子结构分的.
Their failure is the greatest disappointment in an effort to save lives that was kick-started on Jan 11,1964,by the first surgeon General's Report on Smoking and Health.Its finding that smoking is a cause of lung cancer and other disease was major news then.
字面意思:它们的失败真是令人失望,在1964年1月11日所发表的第一份surgeon General's Report( 内容是关于吸烟与健康)使挽救生命的行动重新开始.这份报告指出吸烟是肺癌和其它疾病的成因,这个结果在当时是重大的新闻.
that was kick-started on Jan 11,1964,by the first surgeon General's Report on Smoking and Health 这个"that " 是不是指代前面的"in an effort to save lives"这个运动?这个was major news then.在前面加",which ",写成 " ...of lung cancer and other disease,which was major news then"

提问时间：2021-01-02

答案

that was kick-started on Jan 11,1964,by the first surgeon General's Report on Smoking and Health是定语从句,其中that指代an effort to save lives
在第二句 Its finding that smoking is a cause of lung cancer and other disease was major news then.中,主语是finding,was major news 是谓语,所以前面不能加which,那样的话,这句话就没有谓语部分,典型的sentence fragment了.