Question

i have no choice but to accept his demand如何分析

Answer 1

have no chice but to do是个固定结构

在含介词but的句型中,but前有do,则but后的不定式不能带to；相反,but前若找不到do,则but后的不定式必定带to.例如：

I have no choice but to accept the fact.我别无选择,只好接受这个事实.

I can do nothing but accept the fact.也可