两道就够,何需五道!
根据"but(=except),besides,than后的动词不定式一般要带to,
但如果主句谓语是"do"作实义动词,则不定式不带to.
1)I didn't have any choice but to obey
试比较
2)I did nothing but obey (这里主句"do"作实义动词,所以后不定式不带to)
即:前有"do"后没"to"!
If you still feel confused,leave a message please
祝 学习进步!
典型句型: have no choice but to wait.只要前面动词不是do的变体(do did done),but后边的动词都要加to
没错,94所谓的前有do,后无to.