【题目】—Why does she always ask you for help?
—There is no one else ________，is there?
A. who to turn to B. she can turn to
C. for whom to turn D. for her to turn
在线课程【答案】B
【解析】试题分析：先行词是no one else，定语从句she can tum to前省略了作宾语的关系代词whom或who。值得指出的是，本句还可以写成to whom she can turn。