以例题的形式讲解
通常的特殊疑问句是 特殊疑问词+ 一般疑问句:
例1:I play football with my friends.(对friends提问)
Who + 一般疑问句:Who do you play football with?
但是,当对一句话的主语提问时,通常把主语换成相应的特殊疑问词,后面不变
例2:Tom broke the window.(对Tom提问)
主语变成Who,其它不变:Who broke the window?
例3:A tiger killed him.(对A tiger 提问)
主语变成What,其它不变:What killed him?