1 (2011北京卷）26. Mary was much kinder to Jack than she was to the others, _________, of course, make all the others upset.
A. who B. which C. what D. that
B
2. She brought with her three friends, none of_____ I had ever met before. ［2009全国卷Ⅰ, 28］
A. them B. who C. whom D. these
【解析】选C。考查定语从句。句意为：她带来了三个朋友，这三个朋友我以前一个也没见过。先行词为friends, 所以介词后的关系代词应该用whom。them和these均不能引导定语从句，排除选项A和D。介词后的关系代词也不能用who, 排除B项。
