(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
答案:B
解析:考查定语从句。分析句子结构可知,两句之间缺少连词,可判断后一句应为非限制性定语从句,故可排除C和D;空格处所填词应引导非限制性定语从句,且在定语从句中作主语,指代前面整个句子,故应选用关系代词which。关系代词that不能引导非限制性定语从句;what只能引导名词性从句,不能引导定语从句;who指人。
句意:玛丽对待杰克要比对待其他人好得多,这当然使所有其他人不高兴。