She said that she would leave Beijing next month

问题描述:

She said that she would leave Beijing next month
为什么要加个that,起什么作用呀,在什么情况下用,请具体说明,
不用行不行

She said that she would leave Beijing next month.她说她在下个月起程去北京这是个复合句:主句:She said,宾语从句:She would leave Beijing next month,that是连接宾语从句的从属连词,口语中可以省略.that引导...