Question

--- 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

Answer 1

B

试题分析：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。