--- 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
网友回答
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。本题答句省略了that，完整的答句应该是there is no one else （that） she can turn to，is there？ 而turn to sb也是固定搭配，意为“向某人寻求帮助” 。而这里的“sb”就是指前面的no one。
句意：——为什么她总是向你寻求帮助？——这儿没有她能寻求帮助的其他人，不是吗？故B正确。