问2道GWD语法题目，请大家帮忙O(∩_∩)O

reneegreen

Most of the purported helth benefits of tea come from antioixidant----compounds also found in beta carotene,vitamin E,and vitamin C, and inhibit the formation of plague along the body's blood vssels.
我觉得，and后面应该是完整的句子但是显然这里没有主语~用了前半句的主语当主语。。。。为什么可以呢？？？


In Hungary, as in much of the Eastern Europe, an overwhelming poroblem of women work, many of them in management and ligt industry.
这里斜线部分用many of which are in 为什么是错误的呢。。。




谢谢谢谢~~~~