Question

I don't know the reason ______you were absent from the meeting ,but i am sure that someone will tel

I don't know the reason ______you were absent from the meeting ,but i am sure that someone will tell me the reason__you haven't told me.
a why,that
b that why
c because which
d of which that

Answer 1

the reason why 的意思是：……的原因
the reason that you haven't told me 从句结构，that 后面是用来解释前面那个reason 的，
someone will tell me the reason tha you haven't told me ....意思是有人会告诉我你缺席的原因，而那个原因是你没有告诉我的、

所以翻译起来就是 我不知道你会议缺席的原因 但我相信总有人会告诉我的 选A

Answer 2

A 第一个空用why 是 原因状语从句 第二个是 同位语从句

Answer 3

a why,that

Answer 4

b

Answer 5

a