the vicar went up into the clock tower to see what was going on 中 to see是什么用法 不定式还是介词
问题描述：
the vicar went up into the clock tower to see what was going on 中 to see是什么用法 不定式还是介词
还有what was going on是什么结构啊
答
to see 是动词不定式 表示目的,what was going on 是宾语从句,它的时态是过去进行时