---Why does she always ask you for help?-There is no one else is there?A. who to turn

问题补充：

---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

答案：

A. who to turn to

(答案→)B. she can turn to

C. for whom to turn

D. for her to turn

解析：考查定语从句。本题定语从句的先行词是no one else，定语从句中whom指代先行词作为动词短语turn to的宾语，动词短语turn to sb (for help)向sb求助；句意：—为什么她总是向你求助？—没有她可以向之求助的人，是吗？故B正确。