问题描述: 改错 the reason why he didn´t come today is because his mother is ill 1个回答 分类:英语 2014-10-07 问题解答: 我来补答 the reason why he didn't come today is that his mother is ill.的原因是.这是一个固定句式 the reason why.that.其中why 和that 位置不能调换 that 不能换做because 前天刚给学生讲了这个句式 展开全文阅读