This is because in the earlydays of radio,those who reported the news
问题描述：
This is because in the earlydays of radio,those who reported the news
were expected to speak excellent English.分析此句子的句子结构,成分.
中间打错。改：early days
答
主句主语是this,系动词是is,表语是because引导的表语从句,in the early days是时间状语,of radio作定语修饰前面名词days.because引导表语从句,主语是those,系动词是were,to speak excellent English是表语.定语从句...