Who will be our monitor has't been decided yet.

问题描述:

Who will be our monitor has't been decided yet.
这是个由who引导的主语从句吗?主语从句的结构是引导词who+陈述语序,为什么会用who will be,who后加的是一个一般疑问句了吧,请各位帮忙分析下句子的结构.

是一个who引导的主语从句.因为who在从句中又做主语,所以此句本身已经相当于一个陈述语序.比如说Do you know what is the matter?此句中what引导的宾语从句也应用作陈述语序,但由于what本身在从句中又做主语,本身已相当于陈述.