Question

一到高中英语题

The days are gone _____ we use “foreign matches”.
A. during when B. during that
C. on which D. during which
（附上解析）

Answer 1

选D。
正常语序是The days during which we used "foreign matches" are gone。因为定语从句使句子头重脚轻，所以放到了后边。
when是关系副词，前面不能有介词，所以否掉A。
that作关系代词时，不能紧跟在介词后，所以否掉B。
应该说during the days，而非on the days，所以否掉C。

Answer 2

d
介词during加which=when 先行词是时间

Answer 3

D 因为during是介词，表示在一段时间内（on 无此意），介词后面加的引导词需时名词，故在b.d中选，但that引导定语从句时不能放在介词后，所以选D 。还原句意： we use “foreign matches”during these days. And the days are gone

Answer 4

The days when we used foreign matches are gone.
We used foreign matches on those days.
We used foreign matches during those days.
其实， C D 都是对的 答案。。
当然， 你的老师肯定说只有一个答案。
教育很落后，老师的水平很低。
当教英语语法能和我这样就不再落后了。。动辄就说什么先行词，学生学的是外语，不是你那套中国式英语教学