【题目】In this giant city, they had no one else ________ support they knew they could count on.
A.of whomB.of whichC.whoseD.that
在线课程【答案】C
【解析】
考查定语从句关系词。句意：在这个巨大的城市里，他们知道他们没有别人的支持可以依靠。分析句子可知，先行词是no one else，support前面缺少定语谁的，所以填关系代词whose修饰support做count on的宾语，故选C。