问题
选择题
She is stubborn in resisting his enquiries about the Moonstone _____ the degree that she makes it seem as if she does not want the mystery ______.
A．on; to solve
B．with; solving
C．for; being solved
D．to; to be solved
答案
答案：D
本题考查介词及非谓语动词。to the degree是 达到……程度 的意思，the mystery与solve之间为被动关系，根据语境迷没被解决，故用不定式，选D。