GWD 7-1

So dogged were Frances Perkins’ investigations of the garment industry, and her lobbying for wage and hour reform was persistent, Alfred E. Smith and Franklin D. Roosevelt recruited Perkins to work within the government, rather than as a social worker.

1. and her lobbying for wage and hour reform was persistent,
2. and lobbying for wage and hour reform was persistent, so that
3. her lobbying for wage and hour reform persistent, that
4. lobbying for wage and hour reform was so persistent,
5. so persistent her lobbying for wage and hour reform, that

   Answer: E

so.....,so.....,that

同问~ so 与 so 之间不用and么？

http://query.nytimes.com/gst/fullpage.html?res=9F0CE0D81E3AF937A25752C1A965958260&sec=&spon=&pagewanted=1

经查证，此句选项有误，E选项前面应加and，原文在上面的链接里，感谢以前的nn