for which和 why的区别如题

for which和 why的区别如题 名次性从句中for which 和why的区别 关于for which 和 why 的例句 what for和why的区别 定语从句 of which 和why的区别额.........打错了....本来想问for which和why的区别的~一道选择题上介俩选项都出现了......... why 和 for which 替换的语法问题.定语从句中,why 和 for which 可以替换,在实际例句中,不太理解,如：1 Is this the reason why / for which he refused our offer 这就是他拒绝我们帮助他的理由吗?for which 这里,whic which 和for which的用法与区别 为啥? the reason why和the reason that的区别The reason ______he didn't come was ______he was ill.　　A.why; that B .that;why C.for that;that D.for which;what为什么答案是A? the reason for和the reason why的区别? in which on which for which 的区别 why 和for which 在定语从句中一样么 look for 和 look at 的区别如题 英语to,of,for的用法和区别如题 pay for 和 cost的区别?如题. at supper和for supper的区别如题 search 和search for的区别如题 why 和 why not 的区别 why not 可以单独使用,如：--I don't like it at all.-- why not?why可以吗 引导定于从句的that和which的用法区别是?如题.