Finish your homework first,or I won't let you __ .A to go out B go out C going out D will go out
问题描述：
Finish your homework first,or I won't let you __ .A to go out B go out C going out D will go out
尤其这里的什么时候应该用to,很难把握,
答
let是使役动词后面要加动词原型的,所以应该是不带to 的,这里go out 本身就是个固定短语的,to 是不定式的结构之一,需要加不定式时要用to 的,