1.C
从句来修饰2000workers,指人,又跟在介词of后,故用who的宾格形式whom.还原过来:In our factory there are 2000 workers.Two thirds of the 2000 workers are women.
2.A
有两种表示法:
a.I'm interested in what you have said.(介词in的宾语从句.)
b.I'm interested in all that you have said.(that定语从句修饰all)
这个就不用还原了吧!