which bus can take me there中的which bus 做什么语
问题描述：
which bus can take me there中的which bus 做什么语
答
Which bus can take me there?
哪一路公交车能把我载到那里?
句中的which bus 做主语.It is necessary for ben to practise before the walk哪个是主语答：it是这句话形式上的主语，而真正的主语是不定式短语to practise。