关于英语单词reason的用法

题目

关于英语单词reason的用法
I came across a problem on the word " reason".1.(The reason why.is because.) Is this sentence pattern grammatically right?(语法上正确) 2.(This is the reason that he is late/This is the reason he is late.) Is this sentence grammatically right?3.This is the very reason___he was late (I think the word "why" should be filled into the blank.What's your opinion?)

答案

由于这个原因 for the reason The reason( why.) is that ...（ ...的）原因是.括号里为定语从句,修饰先行词the reason ,that 从句是接在is 后的表语从句,可以说it is because ,“这是因为” 但不可以说the reason i...