Many adults may think they are getting enough shut-eye,but in a major sleep study almost 80 percent of respondents admitted to not getting their prescribed amount of nightly rest. 请问老师这个句子成分如何划分，句子开头为何会有think /are getting两个谓语动词呢？ 还有一个问题，两个getting为什么要用ing形式啊？谢谢老师