reason的搭配与用法the reason for 后面是根短语嚒?she would like to know the reason _____ fewer and fewer students are showing interest in her class?答案是why或者for which为什么不能用why?写错了。为什么不能用for？请

reason的搭配与用法the reason for 后面是根短语嚒?she would like to know the reason _____ fewer and fewer students are showing interest in her class?答案是why或者for which为什么不能用why?写错了。为什么不能用for？请
reason的搭配与用法
the reason for 后面是根短语嚒?
she would like to know the reason _____ fewer and fewer students are showing interest in her class?
答案是why或者for which
为什么不能用why?
写错了。为什么不能用for？
请重点回答“是不是the reason for后面是跟一个短语?”

reason的搭配与用法the reason for 后面是根短语嚒?she would like to know the reason _____ fewer and fewer students are showing interest in her class?答案是why或者for which为什么不能用why?写错了。为什么不能用for？请
她想要知道为什么越来越少的同学对她的课没有了兴趣
for 是后面的for her class 的补充,which引导的定语从句在which前的介词一般都应在后面通过意思查找.why不能引导定语从句
爱信不信

恩,你说的对

可以用关系副词why，在定语从句中，表原因why=for which