Question

Have you found and answer to the question --------I asksd you this morning A.what B.that

顺便问问:I still remember the day when I first came to the school.为什么不用which?

非常感谢~~

Answer 1

1.应该用that，Have you found an answer to the question -（---that----I asksd you this morning ）？
that引导的括号部分修饰the question，可将其放到you后面还原为“I asksd you the question this morning",an answer to the question是固定用法——“问题的答案”。
2.when 引导的是状语从句，可用on which 替代，原句拆分为：I still remember the day。I first came to the school on "the day".

Answer 2

A
宾语从句缺宾语。。
第二句时因为这是状语从句不是定语从句。。能用when，但是绝对不能用which。。

Answer 3

选B定语从句的关系词
when为关系副词在定语从句中做状语，which在定语从句中做主、宾语

Answer 4

B
when是状语，在从句中充当时间状语，而which却不能