问题
选择题
Although the old lady has a daughter and two sons ,______ live with her．
A．none of whom
B．neither of them
C．all of whom
D．none of them
答案
答案：D
考查复合句。前一个分句是由连词Although引导的，后一个分句也应是一个完整的句子，前后之间是转折关系，所以选D，若去掉Although，可选A，此时是定语从句。