Question

请帮忙分析英语句子语法。谢谢！！

第一句
For many Americans, the tobacco industry's disingenuousness became a matter of public record during a Congressional hearing on April 14, 1994.
第二句
In the 1930s and 1940s, cigarettes were either healthy because they were implicitly endorsed by a kindly doctor, or sexy.
第三句
Each executive raised his right hand and solemnly swore to tell the whole truth about his business.
第四局
Thirty years after the famous surgeon general's report declaring cigarette smoking a hea1th hazard, the tobacco executives, it seemed, were among the few who believed otherwise.
第五句

But it was not always that way.
麻烦哪位分别给分析一下这五句话的语法，谢谢！！

Answer 1

第一句
For many Americans是状语
, the tobacco industry's disingenuousness是主语
became 是系动词
a matter of public record是表语
during a Congressional hearing on April 14, 1994是状语.
第二句
In the 1930s and 1940s是状语,
cigarettes 是主语
were 是系动词 either healthy 是表语
because they were implicitly endorsed by a kindly doctor是状语, or sexy是并列表语.
第三句
Each executive是主语 raised是谓语 his right hand 是宾语and solemnly swore是并列谓语
to tell the whole truth about his business是状语.
第四局
Thirty years after the famous surgeon general's report declaring cigarette smoking a hea1th hazard是状语, the tobacco executives是主语, it seemed是插入语, were 是系动词 among the few who believed otherwise是表语.
第五句

But it 是主语was not 是系动词always 是状语that way是表语.