楼主好, 应该选D it 真正主语在后面,即:the way he keeps changing his mind. he keeps changing his mind 是定语从句,修饰the way. The way he keeps changing his mind worries me. 他犹豫不决的作风让我很烦恼 希望能帮到你^^
答案选D.It it 指代这件事,也就是后面的the way . he keeps changing his mind,是定语从句,修饰the way .当先行词是the way 时,常用that,或in which 引导定语从句,而that 或in which 可以省略。 the way 以及它所引导的定语从句作it 的同位语。