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
为什么呢,先行词是 no one else 那为什么A不行,其他呢

提问时间：2020-06-13

答案

turn to 求助于,to是介词
先行词是 one
she can turn to 是定语从句,省略了关系代词that/who,因为关系代词在从句中做turn to 的宾语
如果选A要把who去掉,这样就是不定式短语做后置定语,修饰one