VOA《Defense Argues Trump Not Directly Responsible for Capitol Violence》
Senators had several hours Friday to ask questions of both sides and will move to closing arguments Saturday.
老师: move to closing arguments - move to doing sth 是什么意思? 这里用了介词to,而不是不定式to, 但如果说move to do sth 又有什么区别呢?
还有,这是ask sth of sb 结构吧?