23页50.the】 book was so interesting that he had read it for three hours ----he realized it

问题描述:

23页50.the】 book was so interesting that he had read it for three hours ----he realized it
A,when B.uintil C.before 选B可以吗,不可以请说明理由,应选什么,为什么

C 牢记 ,人家老外都习惯这么说
译文:这本书太有趣了,等他意识到的时候,自己已经沉浸在其中整整三个小时了.