Question

The reason why Mircosoft has been so successful is because G

Answer 1

1．定语从句．why 在从句中做原因状语

2．严格来说不可以

虽然the reason 后可以接that 和 why 引导定语从句,但该句后面有个表语从句．．．is that

如果说the reason that ...is that 感觉上有点重复,有两个that.因此这中说法几乎不使用．

我们已经习惯说the reason why ...is that 现在已经可以看做是一个固定搭配了．