几个XDF和OG的出入。。

前者曰distinguish A from B & distinguish between A and B both are right..

OG: distinguish between A and B  (T107)

前者曰：in that 优于 because/because of

OG: in that 过于 formal...

还有两个我自己的疑问。。

V+sb+that 根据XDF的笔记是错的，举例是 i told you that ...这种句型就是错的 原因是什么呢？

without sth/doing..根据XDF笔记，是不可插入任何东西的，可是大全17的正确选项C

17. A patient accusing a doctor of malpractice will find it difficult to prove damage if there is a lack of some other doctor to testify about proper medical procedures.
(A) if there is a lack of some other doctor to testify
(B) unless there will be another doctor to testify
(C) without another doctor’s testimony
(D) should there be no testimony from some other docto

就出现了这种结构，是什么原因呢？

为什么没有人回答。。

不知道XDF是什么东东，不过我也遇到过 distinguish A from B VS distinguish between A and B。字典上也说2个都可以用，偏偏OG只用后者。我们自己知道2个都对就行了。如果考试遇到，在其它的情况一样下还是选OG approve的那个好了，就当应一下试。

选项C符合 without sth 句型呀。another doctor's testimony is the sth.