18.It never occurred to me _____ you could succeed in persuading him to change his mind.(D)
A.which B.what C.that D.if
2010年全国陕西卷
我个人认为C是对的。翻译过来也很通。但若用if，翻译为：我从未想到是否你能成功说服他改变主意。这样反倒是个病句。